30-seconds-of-code
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A collection of useful JavaScript snippets.
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Markdown
### median
Returns the median of an array of numbers.
Find the middle of the array, use `Array.sort()` to sort the values.
Return the number at the midpoint if `length` is odd, otherwise the average of the two middle numbers.
```js
const median = arr => {
const mid = Math.floor(arr.length / 2),
nums = [...arr].sort((a, b) => a - b);
return arr.length % 2 !== 0 ? nums[mid] : (nums[mid - 1] + nums[mid]) / 2;
};
```
```js
median([5, 6, 50, 1, -5]); // 5
```