JavaScript
JavaScript ModulesJavaScript Modules
JavaScript modules split large codebases into smaller files.
Read Time
5 min readDifficulty
BeginnerLast Updated
Jun 15, 2026Version
v1.0.0Introduction
JavaScript files can quickly become too large to read or manage. Developers split the code into smaller, separate files called modules. They then export specific variables or functions from one file and import them into another.
Example
Example
Key Points
- The `export` keyword makes code available to other files.
- The `import` keyword pulls code in from other files.
- Modules strict mode automatically.
- HTML script tags require `type="module"` to use them.