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paulohfev/formatCamelCase.js

Last active September 17, 2022 16:45
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Format string in camel case
Raw
formatCamelCase.js
const NON_SPECIAL_CHARS_REGEX = /\W+|[_]+/;
const WHITE_SPACE_REGEX = /\s+/;
const formatCamelCase = (text) => {
const formatCase = (word, index) => {
const formattedNonFirstWord = word.charAt(0).toUpperCase() + word.slice(1);
return index === 0 ? word.toLowerCase() : formattedNonFirstWord
};
return text
.replace(NON_SPECIAL_CHARS_REGEX, ' ')
.split(WHITE_SPACE_REGEX)
.map((word, index) => formatCase(word, index))
.join('')
};
// Examples
console.log(formatCamelCase('hello world')); //~> helloWorld
console.log(formatCamelCase("HELLO-World")); // ~> helloWorld
console.log(formatCamelCase("HELLO__world")); // ~> helloWorld
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