selection_sort.js

const swap = (array, a, b) => {
  const temp = array[a];
  array[a] = array[b];
  array[b] = temp;
  return array;
};

function selectionSort(array) {
  const n = array.length;
  
  // iterate all elements of array except the last element
  for (let i = 0; i < n - 1; i++) {
  	// consider the first element of the unsorted portion
    // of the array is a minimum
    let min = i;
    
    // iterate each unsorted element
    for (let j = i + 1; j < n; j++) {
    	// compare to current element to the minimum element 
      // we've seen so far
      // if the current element is less than minimum element
      if (array[j] < array[min]) {
      	// remember current element as a new minimum
        min = j;
      }
    }
    // swap the minimum element with the first unsorted element
    if (min !== i) {
      swap(array, min, i);
    }
  }
  return array;
}

console.log(selectionSort([76, 23, 4, 7, 11]));