Run results for: Performance Test: hex substring vs substr vs slice

Run details:
User agent: Mozilla/5.0 (Linux; Android 8.1.0; SM-T385) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/92.0.4515.115 Safari/537.36
Browser: Chrome 92
Operating system: Android 8.1.0
Device Platform: Tablet
Date tested: 2 years ago
Test name	Executions per second
slice	10.5 Ops/sec
substring	10.1 Ops/sec
substr	10.9 Ops/sec
Script Preparation code:
var str = 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Tests:
slice
const buf = new Uint8Array((str.length - 1) >> 1) let i for (i = str.length - 2; i > 1; i -= 2) { buf[Math.ceil(i / 2) - 1] = parseInt(str.slice(i, i + 2), 16) } if (i === 1) buf[0] = parseInt(str[2], 16) return buf
substring
const buf = new Uint8Array((str.length - 1) >> 1) let i for (i = str.length - 2; i > 1; i -= 2) { buf[Math.ceil(i / 2) - 1] = parseInt(str.substring(i, i + 2), 16) } if (i === 1) buf[0] = parseInt(str[2], 16) return buf
substr
const buf = new Uint8Array((str.length - 1) >> 1) let i for (i = str.length - 2; i > 1; i -= 2) { buf[Math.ceil(i / 2) - 1] = parseInt(str.substr(i, 2), 16) } if (i === 1) buf[0] = parseInt(str[2], 16) return buf