Get the median value from an array of numbers in JavaScript
To get the median value from an array of numbers in JavaScript, sort the array using Array.sort(), return the number at the midpoint if length is odd, otherwise the average of the two middle numbers in the array.
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const median = arr => {
let middle = Math.floor(arr.length / 2);
arr = [...arr].sort((a, b) => a - b);
return arr.length % 2 !== 0 ? arr[middle] : (arr[middle - 1] + arr[middle]) / 2;
};median([10, 15, 16, 9, 1, 11, 22]); //11 median([99, 45, 26, 7, 11, 122, 22]); //26
