I am a Backend Web Developer, i work on PHP, Mysql, Nodejs, Mongodb. Should i learn Angular to improve my knowledge and profile? [on hold]

And if yes, should I go with Angular 1 or Angular 2 ?

Considering HTML, CSS, Bootstrap i am well versed with Frontend technology and work. But i am unable to handle things when frontend comes with Javascipt frameworks.

via Mohd Belal