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Complete JavaScript Course: Build a Real World App from Scratch

Your First Program

Discover how to write your first JavaScript program to display a message in the console. Understand the basics of program structure, console commands, and syntax including semicolons. This lesson helps you take the initial step in coding with JavaScript.

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Here’s our very first JavaScript program.

Javascript (babel-node)
console.log("Hello from JavaScript!");

This program displays the text "Hello from JavaScript!" in the console, a zone displaying textual information available in most JavaScript environments, such as browsers.

To achieve this, it uses a JavaScript command named console.log(), whose role is to display a piece of information. The text to be displayed is placed between parentheses and followed by a semicolon, which marks the end of the line.

Displaying a text on the screen (the famous Hello World all programmers know) is often the first thing you’ll do when you learn a new programming language. It’s the classic example. You’ve already taken that first step!