Run results for: JS Filter Test

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36

Browser: Chrome 144

Operating system: Linux

Device Platform: Desktop

Date tested: 8 months ago

Benchmark engine: Benchmark.js

array.filter

5.1M/s

array.where

4.6M/s

grepAlone

4.3M/s

$.grep

4.2M/s

angular.$filter

1.4M/s

underscore.filter

926K/s

array.find

817K/s

lodash.filter

582K/s

View exact numbers

Test name	Executions per second
✓ array.filter	5,133,634 Ops/sec
array.where	4,620,551 Ops/sec
grepAlone	4,308,300 Ops/sec
$.grep	4,229,850 Ops/sec
angular.$filter	1,432,838 Ops/sec
underscore.filter	926,251 Ops/sec
array.find	816,710 Ops/sec
lodash.filter	581,897 Ops/sec

HTML Preparation code:

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.4/jquery.min.js">
</script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.29/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.2/lodash.min.js"></script>
<script>
  _lodash = _.noConflict();
</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>

Script Preparation code:

var angularFilter = angular.injector(['ng']).get('$filter')('filter');

// Add array.where implementation
Array.prototype.where = Array.prototype.where || function(predicate) {
  var results = [],
    len = this.length,
    i = 0;

  for (; i < len; i++) {
    var item = this[i];
    if (predicate(item)) {
      results.push(item);
    }
  }

  return results;
};

// Generate test array
window.array = (function() {
  var arr = [];
  for (var i = 0; i < 100; ++i) {
    arr.push(i);
  }

  return arr;
}());

grepAlone = function( elems, callback, invert ) {
		var callbackInverse,
			matches = [],
			i = 0,
			length = elems.length,
			callbackExpect = !invert;

		// Go through the array, only saving the items
		// that pass the validator function
		for ( ; i < length; i++ ) {
			callbackInverse = !callback( elems[ i ], i );
			if ( callbackInverse !== callbackExpect ) {
				matches.push( elems[ i ] );
			}
		}

		return matches;
};

Array.prototype.find = function(predicate) {
  if (this == null) {
    throw new TypeError('Array.prototype.find called on null or undefined');
  }
  if (typeof predicate !== 'function') {
    throw new TypeError('predicate must be a function');
  }
  var list = Object(this);
  var length = list.length >>> 0;
  var thisArg = arguments[1];
  var value;

  for (var i = 0; i < length; i++) {
    value = list[i];
    if (predicate.call(thisArg, value, i, list)) {
      return value;
    }
  }
  return undefined;
};

function getValue(el) {
	return el - 50 > 31;
}

Tests:

$.grep
$.grep(array, getValue);
array.find
array.find(getValue);
array.where
array.where(getValue);
angular.$filter
angularFilter(array, getValue);
array.filter
array.filter(getValue);
lodash.filter
_lodash.filter(array, getValue);
underscore.filter
_.filter(array, getValue);
grepAlone
grepAlone(array, getValue);