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Run results for:
Capitalize
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Run details:
User agent:
Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/85.0.4183.127 Safari/537.36 OPR/60.3.3004.55692
Browser:
Opera 60
Operating system:
Linux
Device Platform:
Desktop
Date tested:
4 months ago
Test name
Executions per second
1
6713478.5 Ops/sec
2
7144399.0 Ops/sec
3
295866.3 Ops/sec
Tests:
1
function capitalizeFirstLetter(string) { return string[0].toUpperCase() + string.slice(1); } capitalizeFirstLetter('string');
2
function capitalizeFirstLetter(s) { return s[0].toUpperCase() + s.substr(1); } capitalizeFirstLetter('string');
3
function capitalizeFirstLetter(s) { s.replace(s[0], s[0].toUpperCase()); } capitalizeFirstLetter('string');