camelCase and PascalCase

camel-Pascal-Case.js

/**
 * pascalcase
 * @param {string} s
 */
const pascalcase = s => {
	const wordList = s.split(/-|_|\./);
	let str = '';
	for (const word of wordList) {
		str += word.charAt(0).toUpperCase() + word.slice(1);
	}
	return str;
};
/**
 * camelcase
 * @param {string} s
 */
const camelcase = s => {
	const str = pascalcase(s);
	return str.charAt(0).toLowerCase() + str.slice(1);
};