Benchmark: Array vs object performance by Dan

Script Preparation code:

   var arr = [];
    for (var i = 0; i < 1000; i++) {
      arr[i] = i;
    }
  
    function someFn(i) {
      return i * 3 * 8;
    }
	
	var obj = {};
	for (var i = 0; i < 1000; i++) {
      obj[i] = i;

Tests:

Array for each
arr.forEach(function (item){ someFn(item); })
Array for
for (var i = 0, len = arr.length; i < len; i++) { someFn(arr[i]); }
Array map
arr.map(item => someFn(item))
Object for each
Object.keys(obj).forEach(function(item) { someFn(item); }
Object for in
for item in obj { someFn(item); }

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array for each
Array for
Array map
Object for each
Object for in

Fastest: N/A

Slowest: N/A

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Array vs object performance by Dan (version: 0)

Comparing performance of: Array for each vs Array for vs Array map vs Object for each vs Object for in

Created: 4 years ago by: Guest

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Array for each

Array for

Array map

Object for each

Object for in

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A

No previous run results