Run results for: Capitalize

Run details:

User agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/120.0.6099.939 YaBrowser/24.1.1.939 (beta) Yowser/2.5 Safari/537.36

Browser: Yandex Browser 24

Operating system: Linux

Device Platform: Desktop

Date tested: 9 months ago

Test name	Executions per second
✓ 3	61,089,764 Ops/sec
5	60,697,776 Ops/sec
1	60,037,908 Ops/sec
2	14,020,842 Ops/sec
4	7,230,514 Ops/sec

Tests:

1
function capitalizeFirstLetter(string) { return string.charAt(0).toUpperCase() + string.slice(1); } capitalizeFirstLetter('string');
2
function capitalizeFirstLetter(string) { return string.replace(/^./, string[0].toUpperCase()); } capitalizeFirstLetter('string');
3
function capitalizeFirstLetter(string) { return string[0].toUpperCase() + string.slice(1); } capitalizeFirstLetter('string');
4
String.prototype.capitalizeFirstLetter = function() { return this.charAt(0).toUpperCase() + this.slice(1); } 'string'.capitalizeFirstLetter();
5
function capitalizeFirstLetter(s) { return s[0].toUpperCase() + s.substr(1); } capitalizeFirstLetter('string');