16 lines
484 B
Markdown
16 lines
484 B
Markdown
### median
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Returns the median of an array of numbers.
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Find the middle of the array, use `Array.sort()` to sort the values.
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Return the number at the midpoint if `length` is odd, otherwise the average of the two middle numbers.
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```js
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const median = arr => {
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const mid = Math.floor(arr.length / 2), nums = [...arr].sort((a, b) => a - b);
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return arr.length % 2 !== 0 ? nums[mid] : (nums[mid - 1] + nums[mid]) / 2;
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};
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// median([5,6,50,1,-5]) -> 5
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// median([0,10,-2,7]) -> 3.5
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```
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