JS - To Camel Case

tocamelcase.js

String.prototype.toCamelCase = function() {
    return this.replace(/(?:[^a-zA-Z\d\s\w:]|[A-Z]|\b\w|\s+)/g, function(match, index) {
        if (+match === 0) return ""; // or if (/\s+/.test(match)) for white spaces
        return index == 0 ? match.toLowerCase() : match.toUpperCase();
    }).replace(/[^a-zA-Z\d\s:]/g, '');
};