Function assertArg

OpenReservation/wwwroot/Scripts/angular.js:1805–1810

* throw error if the argument is falsy.

(arg, name, reason)

     * throw error if the argument is falsy.
     */
    function assertArg(arg, name, reason) {
        if (!arg) {
            throw ngMinErr('areq', "Argument '{0}' is {1}", (name || '?'), (reason || "required"));
        }
        return arg;
    }

    function assertArgFn(arg, name, acceptArrayAnnotation) {
        if (acceptArrayAnnotation && isArray(arg)) {