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Run results for:
String.concat vs array.join
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Run details:
User agent:
Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:143.0) Gecko/20100101 Firefox/143.0
Browser:
Firefox 143
Operating system:
Windows
Device Platform:
Desktop
Date tested:
7 months ago
Test name
Executions per second
String concatentation
13126.0 Ops/sec
Array join
29244.9 Ops/sec
Script Preparation code:
var str = ""; var i; var sArr = [];
Tests:
String concatentation
for (i = 1000; i > 0; i--) { sArr[i] = "String concatenation. "; } str = ''.concat(...sArr);
Array join
for (i = 1000; i > 0; i--) { sArr[i] = "String concatenation. "; } str = sArr.join("");