selection Sort
Sorts an array of numbers, using the selection sort algorithm.
- Use the spread operator (
...
) to clone the original array,arr
. - Use a
for
loop to iterate over elements in the array. - Use
Array.prototype.slice()
andArray.prototype.reduce()
to find the index of the minimum element in the subarray to the right of the current index and perform a swap, if necessary.
const selectionSort = arr => {
const a = [...arr];
for (let i = 0; i < a.length; i++) {
const min = a
.slice(i + 1)
.reduce((acc, val, j) => (val < a[acc] ? j + i + 1 : acc), i);
if (min !== i) [a[i], a[min]] = [a[min], a[i]];
}
return a;
};
selectionSort([5, 1, 4, 2, 3]); // [1, 2, 3, 4, 5]