JavaScript Tutorials

JavaScript Tutorials

A Step-by-step introduction to JavaScript. Learn the powerful scripting language and start building lightweight applications with enhanced user interfaces

Start Learning JavaScript

Try It Now Editors for every JavaScript topic

Learn JavaScript by executing the code with interactive editors

// Hello in Javascript // It will display a text box to enter your name // Your name will be stored in the name variable var name = window.prompt("Hello, What is your name"); // Now, it asks for your favorite color // once you enter the color, it will store that color // in a variable called myfavcolor // display prompt box that ask for favorite color and // store result in a variable called favcolor var myfavcolor = window.prompt("What is your favorite color"); // write "Hello" followed by person' name to browser window document.write("Hello " + name + " " +" Welcome to JavaScript"); // Now it will style the web page with your factorite color. document.bgColor = myfavcolor;
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Interactive Examples for Each JavaScript Topic

You will actually learn JavaScript with interactive examples and live code editors

At the end of the JavaScript tutorial, you can find more than 100 examples. SnoopCode provides an in-browser Try It Now editor so that you can test and edit the code yourself

var countries = ["India", "USA", "UK"]; document.write(countries.length);
JavaScript Examples

Learn JavaScript with GIF Videos

Bringing social innovation into education. Learn how to code while watching the GIF Videos

Practice JavaScript with Live Editors

Practice JavaScript and master the skill set with live editors

function hello() { alert("Welcome to SnoopCode"); } hello();
JavaScript Live Editor