Run results for: Sorting speed comparison

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_13_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36

Browser: Chrome 63

Operating system: Mac OS X 10.13.1

Device Platform: Other

Date tested: 2025 years ago

Test name	Executions per second
PR Code	33918.4 Ops/sec
Comparison Code	90685.2 Ops/sec

Script Preparation code:

var sortDirections = {
  DEFAULT: -1,
  ASC: 1,
  DESC: -1,
};

var numberArrayToSort = [1, 4, 3, 2, 5, 6, 9, 10, 5, 8, 7, 1, 4, 3, 2, 5, 6, 9, 10, 5, 8, 7, 1, 4, 3, 2, 5, 6, 9, 10, 5, 8, 7, 1, 4, 3, 2, 5, 6, 9, 10, 5, 8, 7, 1, 4, 3, 2, 5, 6, 9, 10, 5, 8, 7, 1, 4, 3, 2, 5, 6, 9, 10, 5, 8, 7, 1, 4, 3, 2, 5, 6, 9, 10, 5, 8, 7, 1, 4, 3, 2, 5, 6, 9, 10, 5, 8, 7, 1, 4, 3, 2, 5, 6, 9, 10, 5, 8, 7];

// ---------------------------------

var compare = (lessThan, equalTo) => {
  if (equalTo) {
    return 0;
  }

  if (lessThan) {
    return -1;
  }

  return 1;
};

var compareStraight = (a, b) => {
  if (a === b) {
    return 0;
  }

  if (a < b) {
    return -1;
  }

  return 1;
};


var compareStraightNumber = (a, b) => a - b;

// ---------------------------------

var primitiveTypeComparator = (a, b) => compare(a < b, a === b);

var genericDirectionComparator = (comparator = primitiveTypeComparator) => (a, b, direction = sortDirections.ASC) => {
  return direction * comparator(a, b);
};

var sortByNumberComparator = genericDirectionComparator();

// ---------------------------------

var sortDirectionWrapper = (compareFunc, direction = sortDirections.ASC) => (a, b) => compareFunc(a, b) * direction;
var cleanStraightSort = (direction) => sortDirectionWrapper(compareStraight, direction);
var cleanStraightSortFast = (direction) => sortDirectionWrapper(compareStraightNumber, direction);

// ---------------------------------

Tests:

PR Code
numberArrayToSort.sort((a, b) => sortByNumberComparator(a, b, sortDirections.ASC));
Comparison Code
numberArrayToSort.sort(sortDirectionWrapper(primitiveTypeComparator, sortDirections.ASC));
Comparison Code 2, simple sort function
numberArrayToSort.sort(sortDirectionWrapper(compareStraight, sortDirections.ASC));
Comparison Code 3, syntactic sugar
numberArrayToSort.sort(cleanStraightSort(sortDirections.ASC))
Comparison Code 4, now even quicker?
numberArrayToSort.sort(cleanStraightSortFast(sortDirections.ASC))

Run results for: Sorting speed comparison

Test of sorting speed and approach to currying

PR Code

Comparison Code

Comparison Code 2, simple sort function

Comparison Code 3, syntactic sugar

Comparison Code 4, now even quicker?