Code Tutorials

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. The Binary Search Algorithm in JavaScript

    The Binary Search Algorithm in JavaScript

    Tutorial • Intermediate

    In this post, I'll compare linear search and binary search algorithms. You'll see pseudocode for each algorithm, along with examples and a step-by-step guide...

  2. Kotlin From Scratch: Classes and Objects

    Kotlin From Scratch: Classes and Objects

    Tutorial • Intermediate

    Get an introduction to object-oriented programming in Kotlin by learning about classes: constructors and properties, casting, and advanced class features.

  3. Managing Cron Jobs Using Python

    Managing Cron Jobs Using Python

    Tutorial • Beginner

    In this tutorial, you'll learn the importance of cron jobs and why you need them. You'll also learn how to use python-crontab, a Python module to interact...

  4. How to Create a Multiline String in PHP: 3 Methods

    How to Create a Multiline String in PHP: 3 Methods

    Tutorial • Beginner

    This quick tip will show you how to create a multiline string in PHP using three different methods.

  5. Write to Files and Read Files With PHP

    Write to Files and Read Files With PHP

    Tutorial • Beginner

    In this tutorial, you'll learn several important functions in PHP which are sufficient for all your basic file reading and writing needs. You'll learn how to...

  6. 9 Best Android App Templates for Business

    9 Best Android App Templates for Business

    Tutorial • Beginner

    Are you planning to create an app for your business? If you don't know where to start, that's where Android business app templates from CodeCanyon can help....

  7. Advanced File Upload and Content Management With Filestack

    Advanced File Upload and Content Management With Filestack

    Tutorial • Beginner

    We live in the information age. From communication to shopping to finances to work, we handle most of our interactions digitally through websites and apps....

  8. How to Choose a WordPress Slider or Carousel Plugin in 2025

    How to Choose a WordPress Slider or Carousel Plugin in 2025

    Tutorial • Beginner

    There are hundreds of slider plugins available for WordPress to help you build, organize, and manage your sliders. In this article, I will show you how to...

  9. Kotlin From Scratch: Packages and Basic Functions

    Kotlin From Scratch: Packages and Basic Functions

    Tutorial • Beginner

    In this tutorial, we'll start by looking at how to organize code using packages in Kotlin, and then go on to an introduction to functions in Kotlin.

  10. Send Emails in PHP Using Symfony Mailer

    Send Emails in PHP Using Symfony Mailer

    Tutorial • Beginner

    In this article, we're going to explore the Symfony Mailer library, which allows you to send emails from PHP applications. Starting with installation and...

  11. HTTP: The Protocol Every Web Developer Must Know—Part 2

    HTTP: The Protocol Every Web Developer Must Know—Part 2

    Tutorial • Intermediate

    In this post we'll look at the finer aspects of HTTP, like connection handling, authentication, and HTTP caching. These topics are fairly extensive, but...

  12. Getting Started With Chart.js: Axes and Scales

    Getting Started With Chart.js: Axes and Scales

    Tutorial • Intermediate

    In this tutorial, you'll read about scales in Chart.js. The tutorial will cover linear, time, and radial scale in detail. By the end, you will be able to...

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