14 lines
321 B
Markdown
14 lines
321 B
Markdown
### arrayAverage
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Returns the average of an array of numbers.
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Use `Array.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 arrayAverage = arr => arr.reduce((acc, val) => acc + val, 0) / arr.length;
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```
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```js
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arrayAverage([1,2,3]) -> 2
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```
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