|
|
||
|---|---|---|
| .. | ||
| .npmignore | ||
| index.js | ||
| index.spec.js | ||
| package.json | ||
| README.md | ||
| USAGE.md | ||
@vates/compose
Compose functions from left to right
Install
Installation of the npm package:
> npm install --save @vates/compose
Usage
import { compose } from '@vates/compose'
const add2 = x => x + 2
const mul3 = x => x * 3
// const f = x => mul3(add2(x))
const f = compose(add2, mul3)
console.log(f(5))
// → 21
The call context (
this) of the composed function is forwarded to all functions.
The first function is called with all arguments of the composed function:
const add = (x, y) => x + y
const mul3 = x => x * 3
// const f = (x, y) => mul3(add(x, y))
const f = compose(add, mul3)
console.log(f(4, 5))
// → 27
Functions may also be passed in an array:
const f = compose([add2, mul3])
Options can be passed as first parameter:
const f = compose(
{
// compose async functions
async: true,
// compose from right to left
right: true,
},
[add2, mul3]
)
Contributions
Contributions are very welcomed, either on the documentation or on the code.
You may:
- report any issue you've encountered;
- fork and create a pull request.