This course will gather as many Javascript tips as possible. Note that these tips are meant to be used in Construct 3. This course will not teach you Javascript. There are plenty of resources out there that already do.
Safely extending the runtime with your own method
Basically, RTFM. If you don't wanna, read this.
Coroutines are super useful! Let's see how to use them.
Good class systems are pretty important
Making modules is also pretty important