We’ve seen how to export a value from a JavaScript file:
const a = 1
export { a }
We can export more by simply adding more values to the export:
const a = 1
const b = 2
const c = 3
export { a, b, c }
test.js
A file that wants to use them will be able to use both, or just pick the values it needs:
import { a } from './test.js'
//or
import { a, b } from './test.js'
//or
import { c, b, a } from './test.js'
//or
import { c } from './test.js'
Or, you can import all:
import * from './test.js'
In this case you’ll have all the variables exported by the exporting file available in the importing file.
import * from './test.js'
console.log(a) //1
console.log(b) //2
console.log(c) //3
Lessons in this unit:
0: | Introduction |
1: | Using import and export |
2: | .mjs files |
3: | Default exports |
4: | ▶︎ Multiple exports |
5: | Renaming exports |
6: | Using the `script` tag |
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