Benchmark: Capitalize - MeasureThat.net

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');

Rendered benchmark preparation results:

Suite status: <idle, ready to run>

Previous results

Test case name	Result
1
2
3
4
5

Fastest: N/A

Slowest: N/A

Latest run results:

Run details: (Test run date: 9 months ago)

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/OS: Yandex Browser 24 on Linux

View result in a separate tab

61.1M/s

60.7M/s

60.0M/s

14.0M/s

7.2M/s

View exact numbers

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

Capitalize (version: 0)

Comparing performance of: `1 vs 2 vs 3 vs 4 vs 5`

Created: 9 years ago by: Guest

Go to the latest result

1

2

3

4

5

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Capitalize (version: 0)

Comparing performance of: 1 vs 2 vs 3 vs 4 vs 5

Created: 9 years ago by: Guest

Go to the latest result

1

2

3

4

5

Suite status: <idle, ready to run>

Fastest: N/A

Slowest: N/A

Related benchmarks

Comparing performance of: `1 vs 2 vs 3 vs 4 vs 5`