Run results for: hex to array buffer

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser: Chrome 120

Operating system: Windows

Device Platform: Desktop

Date tested: 2 years ago

Test name	Executions per second
regex match	403481.5 Ops/sec
parseInt 16	738427.1 Ops/sec

Script Preparation code:

var hexVal = 'ed0c356af33bb022afe7c5f8557ad89c';

function hexToArrayBuffer(hex) {
	return new Uint8Array(hex.match(/[\da-f]{2}/gi).map((h) => {
		return parseInt(h, 16);
	})).buffer;
}

function hexStringToUint8Array(hexString) {
    var arrayBuffer = new Uint8Array(hexString.length / 2);
    for (var i = 0; i < hexString.length; i += 2) {
        var byteValue = parseInt(hexString.substr(i, 2), 16);
        arrayBuffer[i / 2] = byteValue;
    }
    return arrayBuffer;
}

Tests:

regex match
hexToArrayBuffer(hexVal)
parseInt 16
hexStringToUint8Array(hexVal)

Run results for: hex to array buffer

convert hex to array buffer

regex match

parseInt 16