Run results for: lodash vs own capitalize function

Run details:

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/134.0.0.0 Safari/537.36 Edg/134.0.0.0

Browser: Chrome 134

Operating system: Windows

Device Platform: Desktop

Date tested: one month ago

Test name	Executions per second
lodash capitalize	15585363.0 Ops/sec
my own capalize	23586286.0 Ops/sec

HTML Preparation code:

<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

​x
 
​
<script src='https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.5/lodash.min.js'></script>

Script Preparation code:

function capitalizeFirstLetter(string) {
  return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase();
}

 
function capitalizeFirstLetter(string) {  return string.charAt(0).toUpperCase() + string.slice(1).toLowerCase();}

Tests:

lodash capitalize
const text = "SoMe TeXt To CaPiTaLiZe"; _.capitalize(text)
const text = "SoMe TeXt To CaPiTaLiZe";
_.capitalize(text)
my own capalize
const text = "SoMe TeXt To CaPiTaLiZe"; capitalizeFirstLetter(text)
const text = "SoMe TeXt To CaPiTaLiZe";
capitalizeFirstLetter(text)