[removed] Sort array and return an array of indicies that indicates the position of the sorted elements with respect to the original elements

Question

Suppose I have a Javascript array, like so:

var test = [\'b\', \'c\', \'d\', \'a\'];

I want to sort the array. Obviously, I can just do th

Answer 1

You can do this with the Map object. Just set the key/value as index/value and use the Array.from to get the Iterator as a bi-dimensional array then sort either the indexes, the values or both.

function sorting(elements) {
  const myMap = new Map();
  elements.forEach((value, index) => {
    myMap.set(index, value);
  });
  const arrayWithOrderedIndexes = Array.from(myMap.entries()).sort((left, right) => {return left[1] < right[1] ? -1 : 1});
  myMap.clear();
  return arrayWithOrderedIndexes.map(elem => elem[0]);
}
const elements = ['value','some value','a value','zikas value','another value','something value','xtra value'];
sorting(elements);