@queso/camel-case/camelCase.mjs

Converts a string value into camel case.

const allCapitalLetterGroups = /[A-ZÀ-ÖÙ-Ý]+/g
const allWords = /[A-ZÀ-ÖÙ-Ýa-zà-öù-ý]+/g
/**
 *	Converts a string value into [camel case](https://en.wikipedia.org/wiki/Camel_case).
 * @param value The string to convert.
 * @category String
 * @returns The camel-cased string.
 * @example
camelCase('foo-bar-baz')
// => 'fooBarBaz'
 */
export default function camelCase(value) {
	const words = value
		.replace(allCapitalLetterGroups, valleyCase)
		.match(allWords)
	return words
		? words[0][0].toLowerCase() +
				words
					.map(x => x[0].toUpperCase() + x.slice(1))
					.join('')
					.slice(1)
		: ''
	function valleyCase(s) {
		return s.length > 2
			? s[0] + s.slice(1, -1).toLowerCase() + s.slice(-1)
			: s
	}
}