Run results for: Splice vs new Array

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0

Browser: Firefox 102

Operating system: Linux

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
Splice	791617.6 Ops/sec
Copy to new	1234654.2 Ops/sec

Script Preparation code:

var randomArray=Array.from({length: 1000}, () => Math.floor(Math.random() * 100));

Tests:

Splice
for (let i = randomArray.length - 1; i >= 0; --i) { if (randomArray[i] !== 1) { continue; } randomArray.splice(i, 1); } return randomArray;
Copy to new
const newArray = []; for (let i = randomArray.length - 1; i >= 0; --i) { if (randomArray[i] !== 1) { continue; } newArray.push(randomArray[i]); } return newArray;