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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.

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  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!

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