webpack angular starter - $ definition -


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.