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30-seconds-of-code/snippets/toCamelCase.md
Angelos Chalaris 3d79413392 Linting
2017-12-27 11:02:46 +02:00

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### toCamelCase
Converts a string to camelcase.
Break the string into words and combine them capitalizing the first letter of each word.
For more detailed explanation of this Regex, [visit this Site](https://regex101.com/r/bMCgAB/1).
```js
const toCamelCase = str => {
let s = str && str.match(/[A-Z]{2,}(?=[A-Z][a-z]+[0-9]*|\b)|[A-Z]?[a-z]+[0-9]*|[A-Z]|[0-9]+/g)
.map(x => x.slice(0, 1).toUpperCase() + x.slice(1).toLowerCase())
.join('');
return s.slice(0, 1).toLowerCase() + s.slice(1);
};
// toCamelCase("some_database_field_name") -> 'someDatabaseFieldName'
// toCamelCase("Some label that needs to be camelized") -> 'someLabelThatNeedsToBeCamelized'
// toCamelCase("some-javascript-property") -> 'someJavascriptProperty'
// toCamelCase("some-mixed_string with spaces_underscores-and-hyphens") -> 'someMixedStringWithSpacesUnderscoresAndHyphens'
```