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Run results for:
Check Variants2
Go to the benchmark
Embed
Embed Benchmark Result
<iframe src="https://measurethat.net/Embed?id=599264" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:138.0) Gecko/20100101 Firefox/138.0
Browser:
Firefox 138
Operating system:
Windows
Device Platform:
Desktop
Date tested:
one year ago
Test name
Executions per second
Map Check
708894016.0 Ops/sec
Object Check
635119872.0 Ops/sec
Array Check
18966430.0 Ops/sec
Current Variant
73193792.0 Ops/sec
HTML Preparation code:
<!--your preparation HTML code goes here-->
Script Preparation code:
const asd1 = new Map().set(0b1000_0000, 1).set(0b0100_0000, 2).set(0b0010_0000, 3).set(0b0001_0000, 4).set(0b0000_1000, 5).set(0b0000_0100, 6).set(0b0000_0010, 7).set(0b0000_0001, 8); const asd2 = { 0b1000_0000: 1, 0b0100_0000: 2, 0b0010_0000: 3, 0b0001_0000: 4, 0b0000_1000: 5, 0b0000_0100: 6, 0b0000_0010: 7, 0b0000_0001: 8 }; const asd3 = [ 0b1000_0000, 0b0100_0000, 0b0010_0000, 0b0001_0000, 0b0000_1000, 0b0000_0100, 0b0000_0010, 0b0000_0001 ]; const firstSizeByte = 0b0000_0001
Tests:
Map Check
const sizeSize = asd1.get(firstSizeByte) || 0;
Object Check
const sizeSize = asd2[firstSizeByte] || 0
Array Check
const sizeSize = asd3[asd3.indexOf(firstSizeByte)] ?? 0
Current Variant
let sizeSize = 0 if(firstSizeByte & 0b1000_0000) sizeSize = 1 else if(firstSizeByte & 0b0100_0000) sizeSize = 2 else if(firstSizeByte & 0b0010_0000) sizeSize = 3 else if(firstSizeByte & 0b0001_0000) sizeSize = 4 else if(firstSizeByte & 0b0000_1000) sizeSize = 5 else if(firstSizeByte & 0b0000_0100) sizeSize = 6 else if(firstSizeByte & 0b0000_0010) sizeSize = 7 else if(firstSizeByte & 0b0000_0001) sizeSize = 8