Run results for: Custom sort method: Bubble vs Insertion vs Selection

Test name	Executions per second
✓ Selection sort	403,560 Ops/sec
Insertion sort	399,616 Ops/sec
Bubble sort	396,332 Ops/sec

Script Preparation code:

window.users = [
  { name: 'Ваня', level: '3' },
  { name: 'Саша', level: '1' },
  { name: 'Маша', level: '2' },
  { name: 'Ника', level: '3' },
  { name: 'Вера', level: '1' },
  { name: 'Саша', level: '2' },
  { name: 'Ваня', level: '2' }
];

function swap(items, left, right) {
  var temp = [];
  if (left !== right) {
    temp = items[left];
    items[left] = items[right];
    items[right] = temp;
  }
}

function getItem(item, fieldName) {
  if (fieldName) {
    item = item[fieldName]
  }
  return item;
}

function bubbleSort(array, fieldName) {
  let { length } = array, items = [], i;
  while (length--) {
    items[length] = array[length];
  }

  let swapped = true;
  while (swapped) {
    swapped = false;
    for (i = 1; i < length; i++) {
      if (getItem(items[i - 1], fieldName) > getItem(items[i], fieldName)
          && getItem(items[i - 1], fieldName) !== getItem(items[i], fieldName))
      {
        swap(items, i - 1, i);
        swapped = true;
      }
    }
  }
  return items;
}

function insertionSort(array, fieldName) {
  let { length } = array, items = [];
  let i, j, current;
  while (length--) {
    items[length] = array[length];
  }

  for (i = 1; i < length; i++) {
    current = items[i];
    j = i;
    while (j > 0 && getItem(items[j - 1], fieldName) > getItem(current, fieldName)) {
      items[j] = items[j - 1];
      j--;
    }
    items[j] = current;
  }
  return items;
}

function selectionSort(array, fieldName) {
  let { length } = array, items = [];
  let i, j, indexMin;
  while (length--) {
    items[length] = array[length];
  }
  for (i = 0; i < length - 1; i++) {
    indexMin = i;
    for (j = i + 1; j < length; j++) {
      if (getItem(items[indexMin], fieldName) > getItem(items[j], fieldName)) {
        indexMin = j;
      }
    }
    swap(items, indexMin, i);
  }
  return items;
}

Run results for: Custom sort method: Bubble vs Insertion vs Selection

Bubble sort

Insertion sort

Selection sort