How To Name A Javascript File

Naming your JavaScript files is an important aspect of organizing and maintaining your codebase. Proper naming conventions can make your code more readable, understandable, and easier to debug. In this blog post, we will discuss some best practices for naming JavaScript files.

1. Use lowercase letters and hyphens

It is a common convention to use lowercase letters in file names. To separate words, use hyphens (-) instead of spaces. This makes the file names more readable and can prevent potential issues related to case sensitivity on different operating systems.

For example, instead of naming your file myJavaScriptFile.js, name it my-javascript-file.js.

2. Be descriptive and concise

Your file names should give a clear indication of the purpose and content of the file. Using a descriptive name makes it easier for other developers (and yourself) to understand what the file does without having to look at the code.

For example, if you have a file that handles form validation, you could name it form-validation.js instead of something vague like script.js.

3. Use the .js extension

Always use the .js extension for your JavaScript files. This clearly indicates that the file contains JavaScript code and allows text editors and IDEs to provide proper syntax highlighting and code suggestions.

4. Group related files in folders

Organizing your JavaScript files in folders can help you keep your codebase clean and easy to navigate. Group related files together in a folder with a descriptive name, following the same naming conventions as for individual files.

For example, if you have multiple JavaScript files related to user authentication, you could create a folder named auth and put all the related files inside, like auth/login.js and auth/register.js.

5. Use version numbers for libraries and plugins

If you’re using a third-party library or plugin, it’s a good idea to include the version number in the file name. This helps you keep track of the specific version you’re using and can prevent potential issues when updating or switching between versions.

For example, if you’re using jQuery version 3.6.0, name the file jquery-3.6.0.js.


Following these best practices when naming your JavaScript files can lead to a more organized and maintainable codebase. Remember to be consistent with your naming conventions and always consider how your file names will be understood by other developers.