Function isFunction

tests/test_code/js/moment/moment.js:342–347

(input)

    hooks.deprecationHandler = null;

    function isFunction(input) {
        return (
            (typeof Function !== 'undefined' && input instanceof Function) ||
            Object.prototype.toString.call(input) === '[object Function]'
        );
    }

    function set(config) {
        var prop, i;