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Run results for:
String concatenation vs array join #2
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/144.0.0.0 Safari/537.36
Browser:
Chrome 144
Operating system:
Windows
Device Platform:
Desktop
Date tested:
2 months ago
Test name
Executions per second
String concatentation
455133.6 Ops/sec
Array join
73154.2 Ops/sec
Array join (w/ push)
67093.1 Ops/sec
Tests:
String concatentation
let str = ""; for (let i = 0; i < 1000; i++) { str += "String concatenation. "; }
Array join
let arr = []; for (let i = 0; i < 1000; i++) { arr[i] = "String concatenation. "; } str = arr.join("");
Array join (w/ push)
let arr = []; for (let i = 0; i < 1000; i++) { arr.push("String concatenation. "); } str = arr.join("");