Methods
(static) compose(…fns) → {function}
Creates a right-to-left function composition. The rightmost function can accept multiple arguments; the remaining functions must be unary.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
fns |
function |
<repeatable> |
Functions to compose (executed right to left) |
Returns:
A function that passes the result through each function from right to left
- Type
- function
Example
const addOne = x => x + 1;
const double = x => x * 2;
const doubleThenAddOne = compose(addOne, double);
doubleThenAddOne(3) // => 7 (3 * 2 = 6, 6 + 1 = 7)(static) pipe(a, …fns) → {function}
Creates a left-to-right function composition pipeline. The first function can accept multiple arguments; the remaining functions must be unary.
Parameters:
| Name | Type | Attributes | Description |
|---|---|---|---|
a |
function | The first function in the pipeline (can accept multiple arguments) |
|
fns |
function |
<repeatable> |
The remaining functions to pipe through (each takes one argument) |
Returns:
A function that passes the result through each function from left to right
- Type
- function
Example
const addOne = x => x + 1;
const double = x => x * 2;
const addOneThenDouble = pipe(addOne, double);
addOneThenDouble(3) // => 8 (3 + 1 = 4, 4 * 2 = 8)