How To Open Javascript File

JavaScript is a popular scripting language used on the web for both server and client-side applications. Whether you’re new to JavaScript or just want to brush up on your skills, this tutorial will guide you on opening a JavaScript file using different methods.

1. Opening a JavaScript file in a text editor

To open a JavaScript file in a text editor, simply follow these steps:

  1. Locate the JavaScript file on your computer. JavaScript files typically have the .js file extension.
  2. Right-click on the file and choose “Open with” from the context menu.
  3. Select your preferred text editor from the list. Popular text editors include Notepad++, Sublime Text, Visual Studio Code, and Atom.
  4. If your preferred editor isn’t listed, click “Choose another app” and browse to the location of your text editor’s executable file, then select it.

2. Including a JavaScript file in an HTML file

In order to execute the JavaScript code within a browser, you’ll need to include the JavaScript file in an HTML file using the <script> tag with the src attribute. Here’s how:

  1. Open your HTML file in a text editor or create a new one if you haven’t already.
  2. Include the JavaScript file using a <script> tag, like so:
    &lt;script src="your-javascript-file.js"&gt;&lt;/script&gt;

Make sure to replace your-javascript-file.js with the actual name of your JavaScript file. This tag can be placed either within the <head> or the <body> section of your HTML file, depending on when you want the script to be loaded.

3. Opening a JavaScript file in a web browser

You can also open a JavaScript file directly in a web browser, but this method has limited use since the browser will simply display the contents of the file as plain text, without executing any code. To do this:

  1. Open your web browser (e.g. Chrome, Firefox, Safari, etc.).
  2. Press Ctrl + O (Windows/Linux) or Cmd + O (Mac) to open the “Open File” dialog.
  3. Locate and select the JavaScript file you want to open.

This method is mainly useful for quickly viewing the contents of a JavaScript file without needing to open a text editor or include it in an HTML file.


Now you know how to open a JavaScript file using various methods, including opening it in a text editor, including it in an HTML file, and even viewing it directly in a web browser. With this knowledge, you’re well on your way to becoming a JavaScript pro!