Run results for: Concat Vs Spread [eungwang2]

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/108.0.0.0 Safari/537.36

Browser: Chrome 108

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
concat	18202.9 Ops/sec
spread	9640.4 Ops/sec

Script Preparation code:

var firstArray = Array.from({length : 50000}, (v,i) => ({id : i, name : `firstArray${i}`}))
var secondArray = Array.from({length : 50000}, (v,i) => ({id : i, name : `secondArray${i}`}))

AخA
 
var firstArray = Array.from({length : 50000}, (v,i) => ({id : i, name : `firstArray${i}`}))var secondArray = Array.from({length : 50000}, (v,i) => ({id : i, name : `secondArray${i}`}))

Tests:

concat
return firstArray.concat(secondArray);
return firstArray.concat(secondArray);
spread
return [...firstArray,secondArray];
return [...firstArray,secondArray];

Run results for: Concat Vs Spread [eungwang2]

concat

spread