Angular and JQuery
JQuery rocks. JQuery changed the face of the JavaScript and web landscape, and it continues to be awesome today. Angular has a different approach and in some ways I can write my code more efficiently.
I don't subscribe to there being only 1 library/framework. This is not a bash or endorsement of any 1 tool. This is, however, a perspective on how you can code something in JQuery and then in Angular to see the differences.