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Run results for:
Substr vs slice vs replace
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<iframe src="https://measurethat.net/Embed?id=608360" width="100%" height="500px"></iframe>
Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64; rv:139.0) Gecko/20100101 Firefox/139.0
Browser:
Firefox 139
Operating system:
Linux
Device Platform:
Desktop
Date tested:
11 months ago
Test name
Executions per second
Replace
122.0 Ops/sec
Substr
1104.3 Ops/sec
Slice
1149.0 Ops/sec
Tests:
Replace
let str = "someverylongstringthatkeepsonlistingwordsthatdonotserveranyspecificpurposeotherthantestingpurposeforperformancedidyouknowthatsomeverylongstringcouldbegoingonforeverwhenandonlywhen$"; for (let i = 0; i < 500000; ++i) { str = str.replace('$', ''); }
Substr
let str = "someverylongstringthatkeepsonlistingwordsthatdonotserveranyspecificpurposeotherthantestingpurposeforperformancedidyouknowthatsomeverylongstringcouldbegoingonforeverwhenandonlywhen$"; for (let i = 0; i < 500000; ++i) { str = str.substr(0, str.length-1); }
Slice
let str = "someverylongstringthatkeepsonlistingwordsthatdonotserveranyspecificpurposeotherthantestingpurposeforperformancedidyouknowthatsomeverylongstringcouldbegoingonforeverwhenandonlywhen$"; for (let i = 0; i < 500000; ++i) { str = str.slice(0, -1); }