Benchmark Run Result for: Array concat vs spread operator vs push for strings

Array concat vs spread operator vs push for strings

Compare the new ES6 spread operator with the traditional concat() method and push

Date tested: 4 years ago

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/83.0.4103.116 Safari/537.36

Test name	Executions per second
Array.prototype.concat	7333170.0 Ops/sec
spread operator	32131320.0 Ops/sec
Push	25155050.0 Ops/sec

Benchmark definition (click to collapse):

Tests:

Array.prototype.concat
var params = [ "hello", "true", "aaaaa" ]; var other = [ "hello", "hello" ].concat(params);
spread operator
var params = [ "hello", "true", "aaaaa" ]; var other = [ "hello", "hello", ...params ]
Push
var params = [ "hello", "true", "aaaaa" ]; var other = [ "hello", "hello" ].push(...params);

Open this result on MeasureThat.net