Benchmark: bytesToHex - MeasureThat.net

Script Preparation code:

var arr = [];

var count = 100000;

for(var i = 0; i<count; i++) {
  arr.push(i%255);
}

function bytes_to_hex ( arr ) {
    var str = '';
    for ( var i = 0; i < arr.length; i++ ) {
        var h = ( arr[i] & 0xff ).toString(16);
        if ( h.length < 2 ) str += '0';
        str += h;
    }
    return str;
}

function bytesToHex(bytes) {
	for (var hex = [], i = 0; i < bytes.length; i++) {
		hex.push((bytes[i] >>> 4).toString(16));
		hex.push((bytes[i] & 0xF).toString(16));
	}
	return hex.join("");
}

function toHexString(byteArray) {
  return byteArray.map(function(byte) {
    return ('0' + (byte & 0xFF).toString(16)).slice(-2);
  }).join('')
}

Tests:

bytes_to_hex
bytes_to_hex(arr);
bytesToHex
bytesToHex(arr);
toHexString
toHexString(arr);

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
bytes_to_hex
bytesToHex
toHexString

Fastest: N/A

Slowest: N/A

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Latest run results:

Run details: (Test run date: 9 months ago)

User agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.0.0 Safari/537.36

Browser/OS: Chrome 120 on Mac OS X 10.15.7

View result in a separate tab

Test name	Executions per second
bytes_to_hex	625.2 Ops/sec
bytesToHex	245.5 Ops/sec
toHexString	219.2 Ops/sec

bytesToHex (version: 0)

Comparing performance of: bytes_to_hex vs bytesToHex vs toHexString

Created: 7 years ago by: Registered User

Jump to the latest result

bytes_to_hex

bytesToHex

toHexString

Suite status: <idle, ready to run>

Experimental features:

Fastest: N/A

Slowest: N/A