Benchmark: Random hex string generation benchmark

Script Preparation code:

        function genHexString1(len) {
            return Array.from(crypto.getRandomValues(new Uint8Array(len / 2 ))).map(b => b.toString(16).padStart(2, '0')).join('');
        }

        function genHexString2(len) {
            const hex = '0123456789abcdef';
            let output = '';
            for (let i = 0; i < len; ++i) {
                output += hex.charAt(Math.floor(Math.random() * hex.length));
            }
            return output;
        }

        function genHexString3(len) {
            let arr = new Uint8Array((len / 2));
            window.crypto.getRandomValues(arr);
            return Array.from(arr, dec => ('0' + dec.toString(16)).substr(-2)).join('');
        }

        function genHexString4(len) {
            const hexChars = '0123456789abcdef';
            return [...Array(len)].map(() => hexChars[Math.floor(Math.random() * 16)]).join('');
        }

        function genHexString5(len) {
            let arr = new Uint8Array(len / 2);
            crypto.getRandomValues(arr);
            return btoa(String.fromCharCode.apply(null, arr)).replace(/[^a-f0-9]/g, '').substr(0, len);
        }

Tests:

genHexString1
const hex = genHexString1(20)
genHexString2
const hex = genHexString2(20)
genHexString3
const hex = genHexString3(20)
genHexString4
const hex = genHexString4(20)
genHexString5
const hex = genHexString5(20)

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
genHexString1
genHexString2
genHexString3
genHexString4
genHexString5

Fastest: N/A

Slowest: N/A

Latest run results:

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Related benchmarks:

Random hex string generation benchmark (version: 0)

Comparing performance of: genHexString1 vs genHexString2 vs genHexString3 vs genHexString4 vs genHexString5

Created: 2 years ago by: Registered User

Jump to the latest result

genHexString1

genHexString2

genHexString3

genHexString4

genHexString5

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

No previous run results