validateArgs = function validateArgs(triggers, triggerMap) {
    validateTriggerPresence(triggers);
    if (!triggerMap) return true;

    for (var id in triggerMap) {
      validateModalPresence(id);
    }

    return true;
  }
Checks if triggers and their corresponding modals
are present in the DOM
@param  {array} triggers   Array of DOM nodes which have data-triggers
@param  {object} triggerMap Object containing modals and their triggers
@return {boolean}