Benchmark: Array.concat and Babel ES5

Script Preparation code:

var previousContexts = [123, 456, 678, 123, 456, 678, 123, 456, 678, 123, 456, 678, 123, 456, 678, 123, 456, 678];
var newCallContexts = [123, 456, 678, 123, 456, 678, 123, 456, 678, 123, 456, 678, 123, 456, 678, 123, 456, 678];

Tests:

Babel
function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } } var joined = [].concat( _toConsumableArray(previousContexts), _toConsumableArray(newCallContexts) );
New array concat
var joined = [].concat(previousContexts, newCallContexts);
Exist array concat
var joined = previousContexts.concat(newCallContexts);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
Babel
New array concat
Exist array concat

Fastest: N/A

Slowest: N/A

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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/106.0.0.0 Safari/537.36

Browser/OS: Chrome 106 on Windows

View result in a separate tab

Test name	Executions per second
Babel	768237.7 Ops/sec
New array concat	2115173.0 Ops/sec
Exist array concat	2194809.0 Ops/sec

Array.concat and Babel ES5 (version: 1)

Comparing performance of: Babel vs New array concat vs Exist array concat

Created: 6 years ago by: Registered User

Jump to the latest result

Babel

New array concat

Exist array concat

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A