11 lines
313 B
Markdown
11 lines
313 B
Markdown
### arrayAverage
|
|
|
|
Returns the average of an array of 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 arrayAverage = arr => arr.reduce((acc, val) => acc + val, 0) / arr.length;
|
|
// arrayAverage([1,2,3]) -> 2
|
|
```
|