i've build starter app using angular 2 starter angularclass. in console (both chrome , firebug) can type:
a = $('body') and a of type object , looks dom element. can't run 
a.find('h1') where $ comes from?
$ selector function on browser api. can console same in chrome:
$ //type $ in console log function$(selector, [startnode]) { [command line api] } //returns function  checking if exists on window :
window.$ function $(selector, [startnode]) { [command line api] } it returns macthed element dom. reason why a.find('h1') not working because find not function on $ selector function. has nothing webpack or angular2.