Be careful. That can also be actively harmful as people copy paste years old code from stackoverflow and don't know that it is already doable via primitives language provide.
Example, all the answers that tell you to import jquery.
Example, all the answers that tell you to import jquery.
Most people pick up the new features a little at a time by reading blog posts or watching conference presentation videos. An hour or two a week, over as many weeks as you need, gets you up to speed fast enough.