Function isFunction

code/gmane/Chart.bundle.js:2122–2126

(sth)

    var regexes = {};

    function isFunction (sth) {
        // https://github.com/moment/moment/issues/2325
        return typeof sth === 'function' &&
            Object.prototype.toString.call(sth) === '[object Function]';
    }


    function addRegexToken (token, regex, strictRegex) {