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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; rv:150.0) Gecko/20100101 Firefox/150.0
Browser:
Firefox 150
Operating system:
Windows
Device Platform:
Desktop
Date tested:
5 days ago
Test name
Executions per second
String concatentation
389857.0 Ops/sec
Array join
91897.1 Ops/sec
Array join (w/ push)
112684.7 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("");