Benchmark Run Result for: Array concat vs spread operator vs push with objects

Array concat vs spread operator vs push with objects

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

Date tested: 3 years ago

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:93.0) Gecko/20100101 Firefox/93.0

Test name	Executions per second
Array.prototype.concat	7502277.5 Ops/sec
spread operator	8754404.0 Ops/sec
Push	6623293.0 Ops/sec

Benchmark definition (click to collapse):

Tests:

Array.prototype.concat
var params = [ {a: 3}, {a: 4}, {a: 5} ]; var other = [ {a: 1}, {a: 2} ].concat(params);
spread operator
var params = [ {a: 3}, {a: 4}, {a: 5} ]; var other = [ {a: 1}, {a: 2}, ...params ]
Push
var params = [ {a: 3}, {a: 4}, {a: 5} ]; var other = [ {a: 1}, {a: 2} ].push(...params);

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