Run results for: Array vs Typed Array vs Buffer Typed Array

Run details:

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/130.0.0.0 Safari/537.36

Browser: Chrome 130

Operating system: Mac OS X 10.15.7

Device Platform: Desktop

Date tested: 5 months ago

Test name	Executions per second
Array	18.7 Ops/sec
typed array from Buffer	19.7 Ops/sec
typed Array no buffer	19.7 Ops/sec

Script Preparation code:

var size = 450000;
var buf = new ArrayBuffer(size);

var normalArray = new Array(size);
var arrayFromBuffer = new Uint8Array(buf);
var arrayWithoutBuffer = new Uint8Array(size);

​x
 
var size = 450000;var buf = new ArrayBuffer(size);​var normalArray = new Array(size);var arrayFromBuffer = new Uint8Array(buf);var arrayWithoutBuffer = new Uint8Array(size);​

Tests:

Array

for (i =0; i< size; i++){
 normalArray[i] = 0; 
}

 
for (i =0; i< size; i++){ normalArray[i] = 0; }

typed array from Buffer
for (i =0; i< size; i++){ arrayFromBuffer[i] = 0; }
for (i =0; i< size; i++){
arrayFromBuffer[i] = 0;
}
typed Array no buffer
for (i =0; i< size; i++){ arrayWithoutBuffer[i] = 0; }
for (i =0; i< size; i++){
arrayWithoutBuffer[i] = 0;
}

Run results for: Array vs Typed Array vs Buffer Typed Array

Array

typed array from Buffer

typed Array no buffer