JavaScript

JavaScript adds behavior to web pages. Learn values and functions first, then events, DOM updates, and asynchronous data.

Recommended order

1. Values, variables, and functions (Japanese)
2. Events and form input (Japanese)
3. DOM updates (Japanese)
4. fetch() — request data from a server
5. Promises, async, and await (Japanese)

English translations of detailed reference pages will be added alongside future Japanese edits.