22 lines
483 B
Markdown
22 lines
483 B
Markdown
---
|
|
title: Binary function arity
|
|
tags: function
|
|
expertise: intermediate
|
|
author: chalarangelo
|
|
cover: blog_images/blue-bird.jpg
|
|
firstSeen: 2020-05-13T13:36:36+03:00
|
|
lastUpdated: 2020-10-18T23:04:45+03:00
|
|
---
|
|
|
|
Creates a function that accepts up to two arguments, ignoring any additional arguments.
|
|
|
|
- Call the provided function, `fn`, with the first two arguments given.
|
|
|
|
```js
|
|
const binary = fn => (a, b) => fn(a, b);
|
|
```
|
|
|
|
```js
|
|
['2', '1', '0'].map(binary(Math.max)); // [2, 1, 2]
|
|
```
|