Benchmark: concat vs spread operator vs push vs assign

Tests:

Array.prototype.concat
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].concat(params);
spread operator
var params = [ "hello", true, 7 ] var other = [ 1, 2, ...params ]
Push
var params = [ "hello", true, 7 ]; var other = [ 1, 2 ].push(...params);
Assign
var params = [ "hello", true, 7 ]; var other = Object.assign([ 1, 2 ], params)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Array.prototype.concat
spread operator
Push
Assign

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: one year ago)

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/129.0.0.0 Safari/537.36

Browser/OS: Chrome 129 on Windows

View result in a separate tab

Push

68.2M/s

spread operator

61.1M/s

Array.prototype.concat

13.7M/s

Assign

1.9M/s

View exact numbers

Test name	Executions per second
✓ Push	68,231,712 Ops/sec
spread operator	61,130,456 Ops/sec
Array.prototype.concat	13,743,646 Ops/sec
Assign	1,874,298 Ops/sec

concat vs spread operator vs push vs assign (version: 0)

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

Comparing performance of: `Array.prototype.concat vs spread operator vs Push vs Assign`

Created: one year ago by: Guest

Go to the latest result

Array.prototype.concat

spread operator

Push

Assign

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

concat vs spread operator vs push vs assign (version: 0)

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

Comparing performance of: Array.prototype.concat vs spread operator vs Push vs Assign

Created: one year ago by: Guest

Go to the latest result

Array.prototype.concat

spread operator

Push

Assign

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `Array.prototype.concat vs spread operator vs Push vs Assign`