30-seconds-of-code
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A collection of useful JavaScript snippets.
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Markdown
### average
Returns the average of two or more numbers.
Use `Array.reduce()` to add each value to an accumulator, initialized with a value of `0`, divide by the `length` of the array.
```js
const average = (...nums) => nums.reduce((acc, val) => acc + val, 0) / nums.length;
```
```js
average(...[1, 2, 3]); // 2
average(1, 2, 3); // 2
```