17 lines
389 B
Markdown
17 lines
389 B
Markdown
---
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title: average
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tags: math,array,beginner
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---
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Returns the average of two or more numbers.
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Use `Array.prototype.reduce()` to add each value to an accumulator, initialized with a value of `0`, divide by the `length` of the array.
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```js
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const average = (...nums) => nums.reduce((acc, val) => acc + val, 0) / nums.length;
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```
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```js
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average(...[1, 2, 3]); // 2
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average(1, 2, 3); // 2
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``` |