iOS Interview Questions and Answers (with Sample Code)

Curriculum for the course iOS Interview Questions and Answers (with Sample Code)

Top 10 most asked interview questions for an iOS Developer role, in a form of a mock interview. The code from the video: https://github.com/richardtop/ios_interview Follow Richard on social media: https://www.youtube.com/@richardtopchii https://github.com/richardtop/ https://x.com/richardtop_ios Follow Daniel on social media: https://x.com/iDanb0 https://github.com/idanbo ⭐️ Links from the video ⭐️ View Controller Life Cycle https://developer.apple.com/documentation/uikit/uiviewcontroller What’s the difference between a struct and a class https://docs.swift.org/swift-book/LanguageGuide/ClassesAndStructures.html https://github.com/apple/swift/blob/main/stdlib/public/core/Array.swift#L303 https://developer.apple.com/swift/blog/?id=10 What’s the difference between .frame and .bounds property of a UIView https://developer.apple.com/documentation/uikit/uiview/1622621-frame What is a Protocol Oriented Programming https://developer.apple.com/videos/play/wwdc2015/408/ "defer" statement coding question https://docs.swift.org/swift-book/ReferenceManual/Statements.html MVC architecture (Model, View, Controller) https://developer.apple.com/library/archive/documentation/General/Conceptual/DevPedia-CocoaCore/MVC.html https://developer.apple.com/library/archive/documentation/General/Conceptual/CocoaEncyclopedia/Model-View-Controller/Model- View-Controller.html#//apple_ref/doc/uid/TP40010810-CH14 https://developer.apple.com/library/archive/featuredarticles/ViewControllerPGforiPhoneOS/ImplementingaContainerViewController.html "weak" and "unowned" keywords https://kelvas09.github.io/blog/posts/ios_weak_unowned/ https://developer.apple.com/documentation/foundation/urlsession "lazy" keyword https://stackoverflow.com/questions/38141298/lazy-initialisation-and-retain-cycle "@escaping" closure attribue and non-escaping closures https://kelvas09.github.io/blog/posts/ios-escaping/ ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp ⭐️ Contents ⭐️ ⌨️ (0:00:00) Overview ⌨️ (0:00:34) Daniel, the interviewer ⌨️ (0:02:03) Why these questions? ⌨️ (0:02:43) View Controller Life Cycle ⌨️ (0:12:08) What’s the difference between a struct and a class ⌨️ (0:18:33) What’s the difference between .frame and .bounds property of a UIView ⌨️ (0:25:58) What is a Protocol Oriented Programming ⌨️ (0:32:16) "defer" statement coding question ⌨️ (0:37:13) GCD / DispatchQueue coding question ⌨️ (0:46:49) MVC architecture (Model, View, Controller) ⌨️ (0:52:32) "weak" and "unowned" keywords ⌨️ (0:57:07) "lazy" keyword ⌨️ (1:02:05) "@escaping" closure attribue and non-escaping closures ⌨️ (1:05:16) Summary and feedback Corrections: 52:19 The video states that unowned references cannot be optional. However, in practice, unowned references may be either optional or non-optional. For official documentation on this topic, refer to: https://docs.swift.org/swift-book/documentation/the-swift-programming-language/automaticreferencecounting/#Unowned-Optional-References 1:01:52 The explanation in the video may lead viewers to incorrectly infer that non-escaping behavior became the default for closures starting with Swift 5.0. The phrase "as of Swift 5.0, the non-escaping behavior is the default" was used solely to clarify the behavior at the time of the interview recording, rather than to specify the exact point at which this change was introduced. The video emphasizes the ability to store a closure in a variable as the defining characteristic of an escaping closure. However, the more precise and official definition is: "A closure is said to escape a function when the closure is passed as an argument to the function but is called after the function returns." This definition correctly highlights the API behavior rather than the implementation details. For further reference, see: https://docs.swift.org/swift-book/documentation/the-swift-programming-language/closures/

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College Calculus – Full Course with Python Code

Curriculum for the course College Calculus – Full Course with Python Code

Learn college Calculus from an experienced university mathematics professor. You will also learn how to implement all the Calculus concepts using the Python programming language. ✏️ Ed Pratowski developed this course for freeCodeCamp.org. ⭐️ Code Links ⭐️ 1 - Limits and Slope https://colab.research.google.com/drive/1hKKLXzWUtLj_5BjsQpnceKtLAxzZeIkn?usp=sharing 2 - Derivatives https://colab.research.google.com/drive/12n9UZphbfC9tVhoy8QWkeSOhkDjmlh1f?usp=sharing 3 - Graphing Derivatives https://colab.research.google.com/drive/1zdyoccDiQmYnHMfChB8EWY6NqPE10O2J?usp=sharing 4 - Related Rates https://colab.research.google.com/drive/19q4nRpqpBzwZ2Qs7heHSCXHHIPyDpm6R?usp=sharing 5 - Integrals https://colab.research.google.com/drive/15KmbeugtGsxMUiGTg3Wn-fQDgIOK2KAZ?usp=sharing ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp ⭐️ Contents ⭐️ ⌨️ (0:00:00) Intro: Calculus with Python ⌨️ (0:01:51) Limits: Hole in the Graph ⌨️ (0:06:51) Limits: Asymptotes ⌨️ (0:14:08) Limits: Graphing ⌨️ (0:32:36) Limits and Slope ⌨️ (0:44:41) Slope and the Derivative ⌨️ (0:54:46) Derivatives and Calculus ⌨️ (1:04:53) Chain Rule ⌨️ (1:12:27) Product Rule ⌨️ (1:29:42) Implicit Differentiation ⌨️ (1:45:07) Multiple Derivative Steps ⌨️ (1:57:43) Derivative Example ⌨️ (2:06:10) Financial Applications ⌨️ (2:23:06) Projectile Motion ⌨️ (2:31:52) Derivatives and Differentials ⌨️ (2:36:53) Tangent Lines ⌨️ (2:43:03) Parametric Equations ⌨️ (2:54:20) Related Rates: Ladder Sliding ⌨️ (3:12:01) Related Rates: Balloon Volume ⌨️ (3:23:13) Mean Value Theorem ⌨️ (3:29:03) Rolles Theorem ⌨️ (3:33:19) Riemann Sums: Area Under a Curve ⌨️ (3:46:06) Summation and the Integral ⌨️ (3:55:14) Fundamental Theorem of Calculus ⌨️ (4:02:08) Area Above and Below the Axis ⌨️ (4:10:19) Area Between Curves ⌨️ (4:19:05) Volume Revolved Around X ⌨️ (4:33:56) Volume of a Hollow Shape ⌨️ (4:42:57) Volume Revolved Around Y ⌨️ (4:52:54) Center of Mass ⌨️ (5:13:35) The Normal Curve ⌨️ (6:03:04) Sympy Graphing ⌨️ (6:20:07) Arc Length ⌨️ (6:30:43) Surface Area ⌨️ (6:40:32) Integral Formulas 🎉 Thanks to our Champion and Sponsor supporters: 👾 Drake Milly 👾 Ulises Moralez 👾 Goddard Tan 👾 David MG 👾 Matthew Springman 👾 Claudio 👾 Oscar R. 👾 jedi-or-sith 👾 Nattira Maneerat 👾 Justin Hual -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news

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Understand and Code Llama 4 From Scratch

Curriculum for the course Understand and Code Llama 4 From Scratch

This course is a guide to understanding and implementing Llama 4. @vukrosic will teach you how to code Llama 4 from scratch. Code, presentations: https://github.com/vukrosic/courses Code DeepSeek V3 From Scratch Full Course: https://youtu.be/5avSMc79V-w ⭐️ Contents ⭐️ 0:00:00 - Intro 0:04:09 - How LLM works 0:13:09 - Tokens 0:48:05 - Code tokenizer 1:32:57 - Attention explained 2:33:03 - Code attention 2:36:59 - RoPE 2:49:05 - RoPE code & attention 3:20:55 - Feed forward ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp 🎉 Thanks to our Champion and Sponsor supporters: 👾 Drake Milly 👾 Ulises Moralez 👾 Goddard Tan 👾 David MG 👾 Matthew Springman 👾 Claudio 👾 Oscar R. 👾 jedi-or-sith 👾 Nattira Maneerat 👾 Justin Hual -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news

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JavaScript Arrays – Full Course

Curriculum for the course JavaScript Arrays – Full Course

Welcome to the JavaScript Array Master Course. This course is designed to help beginners of JavaScript understand the core concept of one of the most fundamental data structures in JavaScript: Array. The course will take you through each of the topics with code and real-world examples. Ultimately, it also provides 70 + tasks and assignments to get a better grip on everything you learned from it. In this course, you will learn: - Array as a fundamental data structure - How to create arrays and when to use what - Dealing with Array elements - Array destructuring, rest, spread operator - Array mutable and immutable methods. - Array static methods - Array-Like - Array iterator methods - Array Real-world usages and projects - Tasks Important Links - Source Code on GitHub: https://github.com/tapascript/40-days-of-javascript - Download the FREE JavaScript Learning Tracker Template: https://topmate.io/tapasadhikary/382755 To connect with Tapas Adhikary, check out his social accounts: - YouTube: https://www.youtube.com/@tapasadhikary - LinkedIn: https://www.linkedin.com/in/tapasadhikary/ - X: https://twitter.com/tapasadhikary - Discord: https://discord.gg/ux9BchWEW3 ❤️ Try interactive JavaScript courses we love, right in your browser: https://scrimba.com/freeCodeCamp-JavaScript (Made possible by a grant from our friends at Scrimba) ⭐️ Course Contents ⭐️ 0:00:00 - Array Master Course 0:01:17 - How To Take It? 0:02:56 - What Will We Learn? 0:05:20 - What is an Array? 0:07:57 - How to Create Arrays? 0:15:44 - How to Access Elements From an Array? 0:19:27 - Adding Elements To Array: push() & unshift() 0:23:19 - Removing Elements From Array: pop() & shift() 0:26:42 - Clone or Copy Arrays: slice() 0:28:52 - Determine Array 0:30:24 - Array Destructuring 0:35:55 - Assign a Default Value 0:37:55 - Skipping a Value 0:39:25 - Nested Array 0:41:04 - Nested Array Destructuring 0:43:54 - Rest Parameter & Spread Operator 0:48:51 - Destructuring Use Case - Swap 0:50:58 - Destructuring Usercase - Merge 0:52:29 - The Array Length 0:56:51 - B.R.E.A.K & What’s Next? 0:57:30 - The concat() Method 0:59:22 - The join() Method 1:01:30 - The fill() Method 1:05:34 - The includes() Method 1:06:48 - The indexOf() Method 1:08:24 - The lastIndexOf() Method 1:09:26 - The reverse() Method 1:10:41 - The sort() Method 1:17:50 - The splice() Method 1:25:27 - The at() Method 1:28:07 - The copyWithin() Method 1:31:44 - The flat() Method 1:34:36 - Grouping Data 1:40:49 - Immutability 1:44:08 - The toReversed() Method 1:45:21 - The toSorted() Method 1:46:22 - The toSpliced() Method 1:48:56 - The with() Method 1:54:27 - B.R.E.A.K & What’s Next? 1:55:00 - Array-Like and Usages 2:03:18 - Array-Like to Array 2:05:23 - Array.from() Static Method 2:07:02 - Array.fromAsync() Static Method 2:11:45 - Array.of() Static Method 2:13:32 - B.R.E.A.K & What’s Next? 2:14:02 - The filter() Method 2:20:37 - The map() Method 2:27:07 - The reduce() Method 2:38:15 - The reduceRight() Method 2:40:29 - The some() Method 2:43:59 - The every() Method 2:45:53 - The find() Method 2:47:35 - the findIndex() findLastIndex() findLast() Methods 2:50:22 - Chaining Array Methods 2:57:08 - The forEach() Method 2:59:20 - The entries() Method 3:02:43 - The values() Method 3:04:00 - the flatMap() Method 3:07:24 - Task & The End… 🎉 Thanks to our Champion and Sponsor supporters: 👾 Drake Milly 👾 Ulises Moralez 👾 Goddard Tan 👾 David MG 👾 Matthew Springman 👾 Claudio 👾 Oscar R. 👾 jedi-or-sith 👾 Nattira Maneerat 👾 Justin Hual -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news

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Machine Learning and AI Concepts (with Animations)

Curriculum for the course Machine Learning and AI Concepts (with Animations)

Learn about all the most importnat concepts and terms related to machine learning and AI. Course developed by https://www.youtube.com/@turingtimemachine ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp ⭐️ Contents ⭐️ 0:00:00 Introduction 0:00:31 Variance 0:00:58 Unsupervised Learning 0:01:11 Time Series Analysis 0:01:26 Transfer Learning 0:01:41 Gradient Descent 0:01:59 Stochastic Gradient Descent 0:02:12 Sentiment Analysis 0:02:24 Regression 0:02:33 Regularization 0:02:45 Logistic Regression 0:03:01 Linear Regression 0:03:20 Reinforcement Learning 0:03:33 Decision Trees 0:03:47 Random Forest 0:04:03 Truncation 0:04:16 Principal Component Analysis (PCA) 0:04:29 Pre-training 0:04:39 Object Detection 0:04:58 Oversampling 0:05:16 Outlier 0:05:28 Overfitting 0:05:44 One-Hot Encoding 0:05:57 Nearest Neighbor Search 0:06:09 Normal Distribution 0:06:18 Normalization 0:06:35 Natural Language Processing (NLP) 0:06:46 Matrix Factorization 0:06:58 Markov Chain 0:07:23 Model Selection 0:07:33 Model Evaluation 0:07:42 Jupyter Notebook 0:07:54 Knowledge Transfer 0:08:03 Knowledge Graphs 0:08:18 Joint Probability 0:08:28 Inductive Bias 0:08:41 Information Extraction 0:08:49 Inference 0:09:05 Imbalanced Data 0:09:15 Human in the Loop 0:09:30 Graphics Processing Unit (GPU) 0:09:41 Vanishing Gradient 0:09:55 Generalization 0:10:04 Generative Adversarial Networks (GANs) 0:10:19 Ensemble Methods 0:10:27 Multiclass Classification 0:10:38 Data Pre-processing 0:10:49 Regression Analysis 0:11:02 Sigmoid Function 0:11:13 Evolutionary Algorithms 0:11:24 Language Models 0:11:34 Backpropagation 0:11:46 Bagging 0:12:05 Dense Vector 0:12:19 Feature Engineering 0:12:29 Support Vector Machines (SVMs) 0:12:44 Cross-validation 0:13:15 Loss Function 0:13:29 P-value 0:13:47 T-test 0:13:57 Cosine Similarity 0:14:10 Dropout 0:14:21 Softmax Function 0:14:34 Bayes' Theorem 0:14:46 Tanh Function 0:14:57 ReLU Function (Rectified Linear Unit) 0:15:11 Mean Squared Error 0:15:22 Root Mean Square Error 0:15:35 R-squared 0:15:51 L1 and L2 Regularization 0:16:07 Learning Rate 0:16:36 Naive Bayes Classifier 0:16:48 Cost Function 0:17:00 Confusion Matrix 0:17:22 Precision 0:17:33 Recall 0:17:55 Area Under the Curve (AUC) 0:18:19 Train Test Split 0:18:40 Grid Search 0:19:17 Anomaly Detection 0:19:39 Missing Values 0:20:02 Euclidean Distance 0:20:19 Manhattan Distance 0:20:41 Hamming Distance 0:20:59 Jaccard Similarity 0:21:11 K-means Clustering 0:21:32 Bootstrapping 0:21:51 Hierarchical Clustering 0:22:04 Matrix Multiplication 0:22:22 Jacobian Matrix 0:22:37 Hessian Matrix 0:22:54 Measures of Central Tendency 0:23:20 Activation Function 0:23:34 Artificial Neural Network (ANN) 0:23:53 Perceptron 0:24:18 Convolutional Neural Network (CNN) 0:24:48 Recurrent Neural Network (RNN) 0:25:27 Long Short-Term Memory (LSTM) 0:25:52 Transformer Model 0:26:24 Padding 0:26:45 Pooling 0:27:01 Variational Autoencoder 0:27:26 Quantum Machine Learning 🎉 Thanks to our Champion and Sponsor supporters: 👾 Drake Milly 👾 Ulises Moralez 👾 Goddard Tan 👾 David MG 👾 Matthew Springman 👾 Claudio 👾 Oscar R. 👾 jedi-or-sith 👾 Nattira Maneerat 👾 Justin Hual -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news

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From fast food worker to cybersecurity engineer with Tae'lur Alexis [Podcast #169]

Curriculum for the course From fast food worker to cybersecurity engineer with Tae'lur Alexis [Podcast #169]

On this week's episode of the podcast, freeCodeCamp founder Quincy Larson interviews Tae'lur Alexis. She's a developer and security analyst. Instead of going to college, Tae'lur spent years working various fast food and retail jobs. Tae'lur taught herself Python and JavaScript using freeCodeCamp and worked as a software engineer for 5 years before specializing in security engineering. Now instead of building applications, she breaks them. We talk about: - Making ends meet working McDonalds in Florida - How she taught herself programming using freeCodeCamp and the #100DaysOfCode challenge - Leveraging local meetups to make developer friends - Moving to Thailand and working remotely Support for this podcast comes from a grant from Wix Studio. Wix Studio provides developers tools to rapidly build websites with everything out-of-the-box, then extend, replace, and break boundaries with code. Learn more at https://wixstudio.com. Support also comes from the 11,384 kind folks who support freeCodeCamp through a monthly donation. You can join these chill human beings and help our charity's mission by going to donate.freecodecamp.org Links we talk about during our conversation: - Tae'lur's website and blog articles: https://taeluralexis.com - Tae'lur's YouTube channel about working remotely in Bangkok: https://www.youtube.com/@TaelurAlexis - Tae'lur on Twitter: https://x.com/TaelurAlexis Chapters 0:00:00 Teaser 0:00:38 Podcast Intro and Song - Astyanax 0:02:49 Introduction to Security Engineering 0:05:51 The Importance of Security in Startups 0:08:50 Tae'lur's Journey into Coding 0:11:51 Overcoming Challenges in Learning to Code 0:14:56 Building a Supportive Community 0:17:37 First Steps into Software Development 0:20:48 Transitioning to a New Job in Seattle 0:23:49 Adjusting to the Software Development Environment 0:30:41 Navigating the Tech Team Dynamics 0:33:29 Overcoming Workplace Challenges 0:37:27 Building Communication Skills 0:40:15 Transitioning from Job Loss to Freelancing 0:42:49 Exploring the Freelance World 0:48:13 Diving into Cybersecurity 0:55:18 Understanding Security Threats and Defense 0:56:17 Securing Applications Against Threats 0:58:10 The Journey into Cybersecurity 1:00:18 Bug Bounty Hunting and Entry-Level Roles 1:02:49 Understanding CVEs and Their Importance 1:06:00 Living Abroad: The Move to Thailand 1:09:51 Cultural Immersion and Personal Growth 1:12:03 Planning for an International Move 1:15:11 Setting and Achieving Goals 1:17:50 Balancing Humility and Confidence

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Learn Laravel by Building a Medium Clone – Tutorial

Curriculum for the course Learn Laravel by Building a Medium Clone – Tutorial

Learn the Laravel PHP web app framework by building a fully-functional Medium clone in this course from @TheCodeholic. He takes you from basic setup to advanced features like user following and post management. You'll master essential Laravel concepts including routing, authentication, database operations, and Blade templating while creating a real-world application with social features. Code: https://github.com/thecodeholic/laravel-medium-clone ⭐️ Contents ⭐️ - 0:00:00 Intro & Demo - 0:05:35 Setup Environment & Create Project - 0:15:03 Explore Directory Structure - 0:21:36 Introduce Artisan - 0:23:22 Laravel Configuration - 0:26:27 Create Basic Route - 0:28:01 Registration & Login (Laravel Breeze) - 0:33:31 Email Verification - 0:40:14 Tinker - 0:44:02 Models & Migrations - 0:52:25 Factories & Seeders - 1:05:13 Output Categories & Posts - 1:27:09 Pagination - 1:33:19 Blade Directives - 1:37:46 Components - 1:50:06 Layouts - 2:08:10 Create New Post - 2:54:36 Profile Update Page - 3:21:41 Post Details Page - 3:52:05 User's Public Profile Page - 4:16:44 Implement Follow/Unfollow - 4:56:20 Implement Like/Unlike Post - 5:10:53 Filtering posts by Category - 5:21:36 Show only posts from following users - 5:31:33 Image Resize - 5:57:14 Home Page Optimization - 6:11:38 Editing and Deleting Posts - 6:43:26 Make image optional during Update - 6:44:50 Show post owner in post item - 6:50:30 Use Published At field to publish posts - 6:59:38 Fix profile page avatar - 7:02:03 Conclusion ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp 🎉 Thanks to our Champion and Sponsor supporters: 👾 Drake Milly 👾 Ulises Moralez 👾 Goddard Tan 👾 David MG 👾 Matthew Springman 👾 Claudio 👾 Oscar R. 👾 jedi-or-sith 👾 Nattira Maneerat 👾 Justin Hual -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news

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From Accountant to Data Engineer with Alyson La [Podcast #168]

Curriculum for the course From Accountant to Data Engineer with Alyson La [Podcast #168]

On this week's episode of the podcast, freeCodeCamp founder Quincy Larson interviews Alyson La. She taught herself how to code while working as an accountant at GitHub and was able to transition to a data scientist there, then ultimately a software engineer. After one of her kids got diagnosed with autism, she left her career for 3 years to be a full-time mom. She then re-entered the workforce and now teaches other moms how to do the same through a charity called Tech-Moms. She recently won a teacher of the year award and was a top 5 finalist in a data visualization competition. We talk about: - How Alyson taught herself programming while working as an accountant - How she transitioned to data analyst and ultimately data engineer - Tips for preparing for a break from work to take care of your family or address burnout - How to re-enter with the workforce with gusto Support for this podcast comes from a grant from Wix Studio. Wix Studio provides developers tools to rapidly build websites with everything out-of-the-box, then extend, replace, and break boundaries with code. Learn more at https://wixstudio.com. Support also comes from the 11,384 kind folks who support freeCodeCamp through a monthly donation. You can join these chill human beings and help our charity's mission by going to donate.freecodecamp.org Links we talk about during our conversation: - Alyson's new analytics consultancy: https://alysonla.com/ - The charity Alyson teaches at: https://www.tech-moms.org/ Welcome back to the freeCodeCamp podcast your source for raw, unedited interviews with developers. Today we're talking with Alyson La. She taught herself how to code while working as an accountant at GitHub and was able to transition to a data scientist there, then ultimately a software engineer. After one of her kids got diagnosed with autism, she left her career for 3 years to be a full-time mom. She then re-entered the workforce and now teaches other moms how to do the same through a charity called Tech-Moms. She recently won a teacher of the year award and was a top 5 finalist in a data visualization competition. Support for this podcast comes from a grant from Wix Studio. Wix Studio provides developers tools to rapidly build websites with everything out-of-the-box, then extend, replace, and break boundaries with code. Learn more at https://wixstudio.com. Support also comes from the 11,384 kind folks who support freeCodeCamp through a monthly donation. You can join these chill human beings and help our charity's mission by going to donate.freecodecamp.org For this week's musical intro – with yours truly on drums, guitar, bass, and keys – we're going back to 1990 with the F-zero anthem Mute City. Chapters 0:00:00 Teaser 0:02:45 Intro and Song: Mute City 0:02:45 Empowering Moms Through Tech Education 0:03:01 Leveraging AI in Learning 0:05:46 A Journey from Accounting to Tech 0:08:45 Building Skills and Confidence 0:12:01 The Importance of Mentorship 0:15:00 Transitioning to Data Science 0:17:56 Navigating Career Growth 0:20:48 The Role of Business Intelligence 0:23:48 From Data Analyst to Data Scientist 0:26:48 Navigating Data Engineering and Analytics Engineering 0:30:38 Balancing Work and Family Life 0:34:15 The Journey of Motherhood and Career 0:36:21 Reentering the Workforce After a Break 0:39:12 Inspiring Stories of Women in Tech 0:42:43 The Importance of Networking in Tech 0:47:39 Following Your Passion in Tech 0:51:49 Navigating Burnout and Recovery 0:54:03 Preparing for a Sabbatical 0:56:30 Explaining Career Gaps 1:00:06 Motherhood as Leadership 1:01:33 The Concept of Returnships 1:03:40 Shifting Family Dynamics 1:06:21 Childcare Solutions 1:09:44 Generational Progress and Opportunities 1:12:40 Advice to My Younger Self

Watch Online Full Course: From Accountant to Data Engineer with Alyson La [Podcast #168]

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This video is first published on youtube via freecodecamp. If Video does not appear here, you can watch this on Youtube always.

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The perfect React Native development environment setup for Windows

Setting up a React Native development environment on Windows can be overwhelming, especially when using an Android Emulator and Expo. This blog post will walk you through every single step in a bulletproof way, ensuring you don’t miss a thing — from BIOS virtualization settings to resolving common emulator issues.

🔍 Step 1: Check Virtualization Support

React Native emulators (especially Android Studio's Emulator) require hardware acceleration. On Intel machines, this means VT-x (Intel Virtualization Technology) must be enabled.

1. Check virtualization support in Windows:

systeminfo | find "Virtualization"

If it says "Virtualization Enabled In Firmware: No", you’ll need to enable it in BIOS.

🛠 Step 2: Enable Virtualization in BIOS

Follow these steps to enable virtualization (VT-x):

1. Restart your PC
2. Press F2, Del, or Esc repeatedly to enter BIOS/UEFI setup (varies by manufacturer)
3. Navigate to CPU Configuration or Advanced Settings
4. Enable Intel Virtualization Technology (VT-x)
5. Save changes and exit (usually F10)

Note: Laptop BIOS menus may vary. Refer to your laptop’s manual or search online for your brand.

📦 Step 3: Install Node.js and npm

React Native (and Expo) require Node.js and npm.

• Download from: https://nodejs.org/
• Install the LTS version

node -v
npm -v

⚙️ Step 4: Install Git

Git is needed for cloning repos and dependency management:

• Download from: https://git-scm.com/
• Install with default settings

🚀 Step 5: Install Expo CLI

npm install -g expo-cli

📱 Step 6: Install Android Studio

• Download from: https://developer.android.com/studio
• During installation, select:
  • Android SDK
  • Android SDK Platform
  • Android Virtual Device (AVD)

🔧 Step 7: Configure Environment Variables

Add the Android SDK to your PATH:

setx ANDROID_HOME "%LOCALAPPDATA%\Android\Sdk" /M
setx PATH "%PATH%;%ANDROID_HOME%\emulator;%ANDROID_HOME%\tools;%ANDROID_HOME%\tools\bin;%ANDROID_HOME%\platform-tools" /M

📲 Step 8: Install Intel HAXM (For Intel CPUs)

Open Android Studio:

1. Go to Tools > SDK Manager
2. Open the SDK Tools tab
3. Check Intel x86 Emulator Accelerator (HAXM Installer)
4. Click Apply and follow installation instructions

If installation fails manually:

C:\Users\<your-username>\AppData\Local\Android\Sdk\extras\intel\Hardware_Accelerated_Execution_Manager\intelhaxm-android.exe

Right-click > Run as Administrator

✅ Step 9: Test Emulator Acceleration

emulator -accel-check

You should see: HAXM is installed and usable

📟 Step 10: Create and Run an Emulator

1. Open Android Studio
2. Click Device Manager
3. Click Create Device
4. Pick a Pixel device + x86_64 image
5. Launch the AVD

📦 Step 11: Initialize a React Native App with Expo

npx create-expo-app my-app
cd my-app
npx expo start

Press a to launch the Android emulator.

🧯 Common Errors and Fixes

❌ Emulator not starting, shows "WHPX not available" or "HAXM not installed"

Fix: Ensure VT-x is enabled and HAXM is installed correctly

❌ Error: [SC] ControlService FAILED 1062

Fix: This occurs if virtualization is disabled or driver conflicts (e.g., Hyper-V). Disable Hyper-V:

dism.exe /Online /Disable-Feature:Microsoft-Hyper-V-All

❌ Emulator very slow

Fix: Use x86_64 images only; avoid arm64 for emulators.

✅ You’re Done!

You now have a fully working, bulletproof React Native development environment on Windows using Expo and Android Emulator. 🎉

🧠 Pro Tip:

Use physical device + Expo Go app for faster testing during development. Emulators are great for validation and CI testing but can be slow on low-end hardware.

Happy coding! 🚀

Lynx Tutorial – JS Framework for Cross Platform Development

Curriculum for the course Lynx Tutorial – JS Framework for Cross Platform Development

Lynx is a framework similar to React Native. In this course you will learn to build a game search application using Lynx, ByteDance's newly open-sourced cross-platform framework that delivers native performance with modern development practices. This comprehensive course guides you through setting up a Lynx project, implementing API integration, and mastering Lynx's unique dual-thread architecture for optimal performance. This tutorial provides an essential introduction to Lynx's UI components, state management with TanStack Query, and navigation implementation using React Router. ✏️ Course created by Brijen Makwana. 💻 Source Code: https://github.com/BrijenMakwana/lynx-game-search ❤️ Try interactive JavaScript courses we love, right in your browser: https://scrimba.com/freeCodeCamp-JavaScript (Made possible by a grant from our friends at Scrimba) ⭐️ Contents ⭐️ (0:00:00) Video Game Search Mobile App (Lynx) (0:01:49) Initialize the project (0:03:11) Setup Lynx Explorer App for the Testing (0:05:08) Understand the Project Structure (0:06:08) Setup Lynx Dev Tools (0:07:56) Cleanup the Project (0:10:17) GameCard Component (0:15:25) GameCategory Component (0:23:06) Intro to IGDB API (0:24:55) Use Postman to test IGDB API (0:29:12) Queries for Game Categories (0:33:22) Setup Tanstack Query (0:34:59) useGameQuery Custom Hook (0:42:30) Fetch images from IGDB API (0:45:10) Event Listeners in Lynx (0:46:13) Setup React Router (0:47:22) Add New Route for Game Details Screen (0:57:59) useGame Custom hook (1:05:57) Working on the Game Details Screen (1:27:44) GameList Component (1:29:51) Implementing Loader (1:32:15) Add CSS Animations (1:33:49) Run Code in the Main Thread because of the Dual Thread Architecture of Lynx (1:38:54) useGameEvents Custom Hook (1:41:29) GameEvents Component (1:45:29) EventCard Component (1:53:36) Add New Route for Game Event Screen (1:56:49) useGameEvent Custom Hook (2:00:46) Working on the Game Event Screen (2:07:05) Add New Route for Game Search Screen (2:12:32) Working on the Game Search Screen (2:13:04) Handle Input in Lynx (2:19:45) useSearch Custom Hook (2:24:53) Display Games in Search Screen (2:29:00) Outro 🎉 Thanks to our Champion and Sponsor supporters: 👾 Drake Milly 👾 Ulises Moralez 👾 Goddard Tan 👾 David MG 👾 Matthew Springman 👾 Claudio 👾 Oscar R. 👾 jedi-or-sith 👾 Nattira Maneerat 👾 Justin Hual -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news

Watch Online Full Course: Lynx Tutorial – JS Framework for Cross Platform Development

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UpdraftPlus Backup Restore Plugin Tutorial: Clean, Configure, and Recover Like a Pro

UpdraftPlus Backup Restore Plugin Tutorial: Clean, Configure, and Recover Like a Pro

UpdraftPlus is a powerhouse for WordPress backup and restore, but to wield it effectively, developers must master its configuration and recovery processes. This tutorial provides a comprehensive guide to clean configurations and professional recovery techniques using UpdraftPlus. By following these steps, you can streamline your backup and restore workflows, ensuring your WordPress sites are always secure and recoverable.

Understanding UpdraftPlus Configuration and Recovery

Proper configuration ensures backups are reliable and efficient, while mastering recovery techniques minimizes downtime during site restoration. This tutorial covers both aspects to empower developers with professional-level control.

Key Configuration and Recovery Areas

To master UpdraftPlus, focus on these areas:

• Clean Configuration: Setting up UpdraftPlus for optimal performance and reliability.
• Backup Management: Efficiently managing backup files and schedules.
• Recovery Techniques: Employing advanced methods for successful site restoration.
• Troubleshooting: Quickly diagnosing and resolving restore errors.

UpdraftPlus Tutorial: Clean Configuration and Recovery

Here’s a step-by-step tutorial for developers:

1. Clean Configuration Setup

Configure UpdraftPlus for optimal performance:

• Storage Destination: Choose a reliable remote storage destination (e.g., Google Drive, Amazon S3).
• Backup Schedule: Set a backup schedule based on site update frequency.
• File Selection: Select necessary files and database for backup.
• Encryption: Enable encryption for secure backups.
• Email Notifications: Configure email notifications for backup status.

2. Efficient Backup Management

Manage backups effectively:

• Remote Storage Management: Regularly monitor remote storage for space and file integrity.
• Backup Retention: Set retention policies to manage backup storage.
• Manual Backups: Perform manual backups before major site changes.
• Download Backups: Download backups for local storage as a safety measure.

3. Professional Recovery Techniques

Employ advanced recovery techniques:

• Selective Restores: Restore specific components (e.g., database, plugins) instead of full restores.
• Manual Database Import: Import database backups manually using phpMyAdmin or command line.
• File Extraction: Extract backup files locally for manual file uploads.
• Search and Replace: Use WP-CLI or phpMyAdmin to update URLs during domain migrations.

4. Troubleshooting and Debugging

Resolve restore errors efficiently:

• Server Error Logs: Examine server error logs for clues.
• WordPress Debugging: Enable WordPress debugging to log detailed errors.
• Plugin Conflict Isolation: Deactivate plugins to identify conflicts.
• Resource Monitoring: Monitor server resource usage during restores.

Table of Configuration and Recovery Techniques

Area	Technique
Clean Configuration	Remote storage, backup schedule, file selection, encryption, notifications.
Backup Management	Remote storage management, retention policies, manual backups, downloads.
Recovery Techniques	Selective restores, manual database import, file extraction, search and replace.
Troubleshooting	Server logs, WordPress debugging, plugin isolation, resource monitoring.

Conclusion

Mastering UpdraftPlus configuration and recovery techniques is essential for WordPress developers. By setting up clean configurations, managing backups efficiently, employing professional recovery methods, and troubleshooting effectively, you can ensure your WordPress sites are always secure and recoverable. Always maintain backups and use debugging tools to streamline the process.

UpdraftPlus Restore Error Cheat Sheet: HTTP 500, 503, 504, and 524 Explained & Fixed

UpdraftPlus Restore Error Cheat Sheet: HTTP 500, 503, 504, and 524 Explained & Fixed

Encountering HTTP errors during an UpdraftPlus restore can be a significant roadblock for WordPress developers. This cheat sheet provides a concise overview of common HTTP errors (500, 503, 504, 524) encountered during restores, along with quick fixes and debugging tips. By understanding these errors and their solutions, developers can streamline the troubleshooting process and ensure successful site recoveries.

Understanding Common HTTP Restore Errors

HTTP errors during UpdraftPlus restores indicate server-side issues that disrupt the restore process. Each error has a specific meaning and requires targeted troubleshooting.

Common HTTP Errors and Their Meanings

• HTTP 500 (Internal Server Error): A generic server error indicating something went wrong.
• HTTP 503 (Service Unavailable): The server is temporarily unable to handle the request.
• HTTP 504 (Gateway Timeout): The server acted as a gateway and didn't receive a timely response.
• HTTP 524 (A Timeout Occurred): The server took too long to complete the request.

Quick Fixes and Debugging Tips

Here’s a breakdown of common errors and their solutions:

HTTP 500 (Internal Server Error)

• Causes: PHP errors, database issues, corrupted `.htaccess`, plugin conflicts.
• Fixes:
  • Check server error logs for specific PHP errors.
  • Increase PHP memory limit and execution time.
  • Verify database credentials and repair tables.
  • Rename `.htaccess` to test for corruption.
  • Deactivate plugins to isolate conflicts.

HTTP 503 (Service Unavailable)

• Causes: Server overload, maintenance mode, plugin conflicts.
• Fixes:
  • Check server resource usage (CPU, memory).
  • Disable maintenance mode if accidentally enabled.
  • Deactivate plugins to isolate conflicts.
  • Check for server-side issues with your hosting provider.

HTTP 504 (Gateway Timeout)

• Causes: Server timeouts, slow database queries, large backup files.
• Fixes:
  • Increase `max_execution_time` in `php.ini` or `.htaccess`.
  • Optimize database queries and repair tables.
  • Use smaller backup files or restore components individually.
  • Check server network connectivity.

HTTP 524 (A Timeout Occurred)

• Causes: Long-running processes, insufficient server resources.
• Fixes:
  • Increase `max_execution_time` and `memory_limit` in `php.ini`.
  • Optimize server resources or upgrade hosting.
  • Break down large restore processes into smaller steps.
  • Check for network latency.

Debugging Workflow

Follow this debugging workflow for efficient troubleshooting:

1. Check Server Error Logs: Examine logs for specific error messages.
2. Verify Backup Integrity: Ensure backup files are not corrupted.
3. Adjust PHP Limits: Increase memory and execution time.
4. Check Database: Verify credentials and repair tables.
5. Isolate Plugin Conflicts: Deactivate plugins to identify conflicts.
6. Monitor Server Resources: Check CPU, memory, and disk usage.
7. Contact Hosting Provider: If issues persist, contact your hosting provider.

Table of Errors and Quick Fixes

Error	Causes	Fixes
HTTP 500	PHP errors, database issues, `.htaccess` corruption, plugin conflicts.	Check logs, increase PHP limits, repair database, rename `.htaccess`, deactivate plugins.
HTTP 503	Server overload, maintenance mode, plugin conflicts.	Check resources, disable maintenance, deactivate plugins, contact hosting.
HTTP 504	Server timeouts, slow queries, large files.	Increase execution time, optimize database, use smaller files, check network.
HTTP 524	Long processes, insufficient resources.	Increase PHP limits, optimize resources, break down processes, check latency.

Conclusion

Understanding and quickly resolving HTTP errors during UpdraftPlus restores is crucial for efficient site recovery. By using this cheat sheet and following the debugging workflow, developers can minimize downtime and ensure successful restorations. Always back up your site and use the debugging tools provided to streamline the troubleshooting process.

From drop-out to software architect with Jason Lengstorf [Podcast #167]

Curriculum for the course From drop-out to software architect with Jason Lengstorf [Podcast #167]

On this week's episode of the podcast, freeCodeCamp founder Quincy Larson interviews Jason Lengstorf. He learned to code out of necessity building websites for local emo bands. He dropped out of college but eventually worked as an engineer at IBM and has gone on to roles at many other companies doing everything from software architecture to management. He runs CodeTV, a Bravo-style reality TV channel for developers. We talk about: - Jason's winding path into development from building websites for bands - Teaching yourself programming by chasing your curiosity - How in-person events gives you tacit knowledge that makes you a better engineer - How having a broad range of skills ultimately helps you build better projects Support for this podcast comes from a grant from Wix Studio. Wix Studio provides developers tools to rapidly build websites with everything out-of-the-box, then extend, replace, and break boundaries with code. Learn more at https://wixstudio.com. Support also comes from the 11,384 kind folks who support freeCodeCamp through a monthly donation. You can join these chill human beings and help our charity's mission by going to donate.freecodecamp.org Links we talk about during our conversation: - CodeTV: https://codetv.dev/ - The CodeTV YouTube channel: https://www.youtube.com/channel/UCnty0z0pNRDgnuoirYXnC5A - Jason's website: https://jason.energy/ Chapters 0:00:00 Teaser 0:00:21 Quincy's Intro and Song: Amazing Spider Man 0:02:29 Introduction to Leet Heat and Automation 0:05:32 The Making of Leet Heat: Behind the Scenes 0:08:28 Jason's Non-Traditional Path to Tech 0:14:33 Agency Life: The Ups and Downs 0:20:28 Transitioning from Agency to Corporate 0:26:40 Innovating at IBM: The Journey of Re-Architecture 0:29:05 The Evolution of JAMstack 0:30:42 The Importance of Storytelling in Tech 0:33:28 Navigating Bureaucracy in Large Organizations 0:34:58 Finding the Right Work Environment 0:37:15 Building Community at Gatsby 0:38:15 The Power of Pair Programming 0:41:11 The Value of Tacit Knowledge 0:45:57 Casual Conversations and Problem Solving 0:47:53 Creating Learning Opportunities in Tech 0:51:24 The Balance of Learning and Doing 0:54:17 Building Community and Networking 0:58:43 The Importance of Building and Sharing Knowledge 1:03:56 Creating Value Through Building Projects 1:10:25 Chasing Curiosity and Embracing Challenges 1:15:15 The Transferable Skills in Career Development

Watch Online Full Course: From drop-out to software architect with Jason Lengstorf [Podcast #167]

Click Here to watch on Youtube: From drop-out to software architect with Jason Lengstorf [Podcast #167]

This video is first published on youtube via freecodecamp. If Video does not appear here, you can watch this on Youtube always.

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Restore Failed in UpdraftPlus? Proven Debugging Workflow for Common Restore Issues

Restore Failed in UpdraftPlus? Proven Debugging Workflow for Common Restore Issues

Encountering a failed restore in UpdraftPlus can be a significant hurdle for WordPress developers. To streamline the troubleshooting process, a proven debugging workflow is essential. This guide outlines a methodical approach to diagnose and resolve common restore issues, ensuring a successful site recovery. By following this workflow, developers can minimize downtime and maintain site integrity.

Understanding Common Restore Failure Points

UpdraftPlus restores can fail due to various factors, including server limitations, corrupted backups, and configuration errors. Recognizing these common failure points is crucial for effective debugging.

Key Areas to Investigate

When a restore fails, focus on these key areas:

• Backup Integrity: Verify the completeness and integrity of backup files.
• Server Environment: Check server configurations and resource availability.
• Database Connectivity: Ensure proper database connection and import.
• Plugin Conflicts: Identify and resolve conflicts with other plugins.
• File Permissions: Verify correct file and directory permissions.

Proven Debugging Workflow

Here’s a step-by-step debugging workflow for developers:

1. Initial Error Analysis

Begin by analyzing the error messages provided by UpdraftPlus. These messages offer initial clues about the failure's root cause. Also, examine server error logs for more detailed information.

2. Backup Integrity Verification

Download the backup files and verify their integrity using checksum tools. If files are corrupted, attempt to restore from a different backup or recreate the backup.

3. Server Environment Checks

Verify that the server meets UpdraftPlus and WordPress requirements:

• PHP Version and Limits: Ensure PHP version is compatible and increase `memory_limit` and `max_execution_time` if needed.
• Disk Space: Verify sufficient disk space for the restore process.
• Server Resources: Monitor CPU and memory usage during the restore.

4. Database Connectivity and Import

Check database credentials and verify the database server is running. If UpdraftPlus fails to import the database, manually import it using phpMyAdmin or the command line.

5. Plugin Conflict Isolation

Deactivate all other plugins and attempt the restore again. If the restore succeeds, reactivate plugins one by one to identify the conflicting plugin.

6. File Permissions Verification

Ensure correct file and directory permissions. UpdraftPlus requires write permissions for specific directories. Use your hosting control panel or SSH to adjust permissions.

7. WordPress Debugging

Enable WordPress debugging to log detailed error messages:

define( 'WP_DEBUG', true );\ndefine( 'WP_DEBUG_LOG', true );\ndefine( 'WP_DEBUG_DISPLAY', false );

Review the `debug.log` file for clues.

8. Manual Restore Techniques

If automated restores continue to fail, employ manual restore techniques:

• Manual Database Import: Import database backups using phpMyAdmin or command line.
• Manual File Upload: Extract and upload backup files via FTP/SFTP.
• Configuration Adjustments: Manually adjust `wp-config.php` settings.

Table of Debugging Steps and Solutions

Issue	Debugging Step
General Failure	Analyze error messages and server logs.
Corrupted Backups	Verify backup integrity using checksum tools.
Server Limitations	Check PHP version, limits, disk space, and resources.
Database Issues	Verify database connectivity and manually import if needed.
Plugin Conflicts	Deactivate other plugins to isolate conflicts.
File Permissions	Verify and adjust file and directory permissions.
Detailed Errors	Enable WordPress debugging and review logs.
Persistent Failures	Employ manual restore techniques.

Conclusion

A failed UpdraftPlus restore can be effectively addressed using a proven debugging workflow. By systematically analyzing errors, verifying backups, checking server environments, and employing manual restore techniques, developers can minimize downtime and ensure a successful site recovery. Always maintain backups and use debugging tools to streamline the troubleshooting process.

UpdraftPlus Restore Not Working? Advanced Manual Restore Techniques for Developers

UpdraftPlus Restore Not Working? Advanced Manual Restore Techniques for Developers

When the conventional UpdraftPlus restore fails, WordPress developers need to delve into advanced manual restore techniques to salvage their site. This guide provides a developer-focused approach to manually restoring WordPress backups when the plugin’s automated process falls short. We’ll cover the intricacies of database restoration, file manipulation, and configuration adjustments to get your site back online.

Understanding the Limitations of Automated Restores

While UpdraftPlus simplifies the restore process, it's not foolproof. Issues like server limitations, corrupted backups, or complex configurations can hinder the automated restore. Recognizing these limitations is the first step towards mastering manual restore techniques.

When to Consider Manual Restores

Developers should consider manual restores in scenarios like:

• Corrupted Backup Files: When the plugin fails to read or process backup files.
• Server Timeouts: When automated restores exceed server execution time limits.
• Database Errors: When the plugin encounters database connection or import issues.
• Complex Migrations: When migrating to drastically different server environments.
• Plugin Conflicts: When other plugins interfere with the restore process.

Advanced Manual Restore Techniques

Here’s a developer-centric guide to manually restoring WordPress backups:

1. Manual Database Restoration

If UpdraftPlus fails to restore the database, you can manually import the database backup using phpMyAdmin or the command line:

phpMyAdmin:

1. Log in to phpMyAdmin.
2. Create a new database or select an existing one.
3. Go to the “Import” tab.
4. Select the database backup file (.sql or .sql.gz).
5. Click “Go” to import the database.

Command Line:

mysql -u username -p database_name < database_backup.sql

Replace `username`, `database_name`, and `database_backup.sql` with your credentials and file path.

2. Manual File Restoration

For file-related issues, manually extract and upload the backup files:

1. Download the UpdraftPlus backup files (plugins, themes, uploads, others).
2. Extract the files using an archive tool.
3. Upload the extracted files to the `wp-content` directory using FTP or SFTP.
4. Ensure correct file permissions (usually 755 for directories and 644 for files).

3. Configuration Adjustments

After restoring files and the database, adjust the `wp-config.php` file to ensure correct database connection and site URLs:

define( 'DB_NAME', 'database_name' );\ndefine( 'DB_USER', 'database_user' );\ndefine( 'DB_PASSWORD', 'database_password' );\ndefine( 'DB_HOST', 'database_host' );\ndefine( 'WP_HOME', 'http://your-new-domain.com' );\ndefine( 'WP_SITEURL', 'http://your-new-domain.com' );

Replace the placeholders with your actual values.

4. Search and Replace in Database

If you’re migrating to a new domain, perform a search and replace in the database to update old URLs with the new ones. You can use tools like WP-CLI or phpMyAdmin for this:

WP-CLI:

wp search-replace 'old-domain.com' 'new-domain.com' --all-tables

phpMyAdmin:

1. Select your WordPress database.
2. Go to the “SQL” tab.
3. Run the following query:

UPDATE wp_options SET option_value = REPLACE(option_value, 'old-domain.com', 'new-domain.com');\nUPDATE wp_posts SET post_content = REPLACE(post_content, 'old-domain.com', 'new-domain.com');

5. Debugging and Troubleshooting

If you encounter issues, enable WordPress debugging and check server error logs:

define( 'WP_DEBUG', true );\ndefine( 'WP_DEBUG_LOG', true );\ndefine( 'WP_DEBUG_DISPLAY', false );

Review the `debug.log` file and server error logs for clues.

Table of Manual Restore Techniques

Technique	Description
Manual Database Restore	Import database backup using phpMyAdmin or command line.
Manual File Restore	Extract and upload backup files via FTP/SFTP.
Configuration Adjustments	Modify `wp-config.php` for database and URL settings.
Search and Replace	Update old URLs in the database.
Debugging	Enable WordPress debugging and check server logs.

Conclusion

When UpdraftPlus automated restores fail, developers can leverage advanced manual restore techniques to recover their WordPress sites. By manually restoring the database, files, and configurations, and employing debugging tools, you can overcome restore challenges. Always back up your site and use the debugging tools provided to streamline the troubleshooting process.