Run results for: concat vs push

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_12_1) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/54.0.2840.71 Safari/537.36

Browser: Chrome 54

Operating system: Mac OS X 10.12.1

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
concat	373004.8 Ops/sec
push	2910.2 Ops/sec

Script Preparation code:

var someBigArray = [];
var anotherArray = [];

for (var i = 0; i < 1000; i++) {
  someBigArray.push(10);
  anotherArray.push(10);
}

Tests:

concat
var thing = someBigArray.concat(anotherArray);
push
var thing = [] someBigArray.forEach(function(item) { thing.push(anotherArray); }); anotherArray.forEach(function(item) { thing.push(anotherArray); });