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Angelos Chalaris
2020-09-15 16:28:04 +03:00
parent 040efd4380
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snippets/composeRight.md
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@ -5,8 +5,8 @@ tags: function,intermediate
Performs left-to-right function composition.
Use `Array.prototype.reduce()` to perform left-to-right function composition.
The first (leftmost) function can accept one or more arguments; the remaining functions must be unary.
- Use `Array.prototype.reduce()` to perform left-to-right function composition.
- The first (leftmost) function can accept one or more arguments; the remaining functions must be unary.
```js
const composeRight = (...fns) => fns.reduce((f, g) => (...args) => g(f(...args)));
@ -17,4 +17,4 @@ const add = (x, y) => x + y;
const square = x => x * x;
const addAndSquare = composeRight(add, square);
addAndSquare(1, 2); // 9
```
```