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Discover thousands of free code tutorials to help you learn web and mobile development. You can learn Android app development, master React Native, become a better WordPress developer, and much more.

Featured Code Tutorials

  • The Best Way to Deep Copy an Object in JavaScript

    The Best Way to Deep Copy an Object in JavaScript

    Kingsley Ubah
  • Create a JavaScript AJAX Post Request: With and Without jQuery

    Create a JavaScript AJAX Post Request: With and Without jQuery

    Kingsley Ubah
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    Code Courses

  • Learn React 18: The Complete React Developer Course

    Learn React 18: The Complete React Developer Course

    Franc Lucas
  • Learn Modern JavaScript Fundamentals in 7 Hours: Free Course

    Learn Modern JavaScript Fundamentals in 7 Hours: Free Course

    Dan Wellman
  • All Code Content:

    1. Validating Data With JSON-Schema: Part 1

      Validating Data With JSON-Schema: Part 1

      Tutorial Advanced

      When you're dealing with complex and structured data, you need to determine whether the data is valid or not. JSON-Schema is the standard of JSON documents...

    2. Learn React 18: Passing Data With Props

      Learn React 18: Passing Data With Props

      Tutorial Beginner

      In React, we primarily use props to pass data to our components. This tutorial will give you a brief introductory overview of props in React.

    3. Learn React 18: Separating JavaScript and JSX

      Learn React 18: Separating JavaScript and JSX

      Tutorial Beginner

      Separating JavaScript and JSX lets you write cleaner components with more complex data processing and logic. This tutorial will teach you how to use simple...

    4. What Is the functions.php File in WordPress?

      What Is the functions.php File in WordPress?

      Tutorial Beginner

      Every WordPress theme comes with a function.php file or the theme functions file which can enable features for your site. In this post, I'll explain where to...

    5. Understanding Native, WebView, and Hybrid Templates for Android Apps in 2025

      Understanding Native, WebView, and Hybrid Templates for Android Apps in 2025

      Tutorial Beginner

      Discover the wide variety of premium Android mobile templates you can find in the CodeCanyon marketplace. You can customize these templates to create the...

    6. The header.php File: What Needs to Go in It and What Doesn't

      The header.php File: What Needs to Go in It and What Doesn't

      Tutorial Beginner

      In this tutorial, let's talk about the header.php, an essential file for any WordPress theme. I'll show you a nice header file example and give tips about...

    7. Best PHP Invoicing and Billing Scripts

      Best PHP Invoicing and Billing Scripts

      Tutorial Beginner

      Do you want to automate your billing and invoicing process and receive payment faster? PHP invoicing scripts will streamline your billing and invoicing...

    8. Image Resizing Made Easy With PHP

      Image Resizing Made Easy With PHP

      Tutorial Intermediate

      Ever wanted an all-purpose, easy-to-use method of resizing your images in PHP? That's what PHP classes are for—reusable pieces of functionality that we call...

    9. Android From Scratch: Understanding Views and View Groups

      Android From Scratch: Understanding Views and View Groups

      Tutorial Beginner

      Aside from a handful of edge cases, every application that you build has some form of user interface. On Android, this is accomplished through the use of...

    10. How to Work With GitHub and Multiple Accounts

      How to Work With GitHub and Multiple Accounts

      Tutorial Intermediate

      So you have a personal GitHub account; everything is working perfectly. But then, you get a new job, and you now need to have the ability to push and pull to...

    11. Learn React 18: Introducing JSX

      Learn React 18: Introducing JSX

      Tutorial Beginner

      This tutorial will introduce you to JSX in React and provide some tips to help you avoid errors.

    12. Learn React 18: Introducing Components

      Learn React 18: Introducing Components

      Tutorial Beginner

      Components are the building blocks of any React app. If you want to learn React, you have to start with components!