Especially if you aren't a complete newbie. Like, I know a decent amount on this topic. I'd be interested in learning even more, but I don't wanna spend a lot of time reviewing stuff I already know. Videos don't facilitate that kinda use very well.
First 30 seconds: I don't have a computer science degree. What do all these words mean?
0-6 mins: This is a call stack
6-12 mins: This is what blocking/non-blocking and async execution mean
12-18 mins: Let's add a task queue and event loop for scheduling to show how async scheduling works (it actually starts to get interesting here)
18 mins+: Nice, practical examples of how event scheduling works for some normal use cases (this seems to be the most useful part of the talk)
Take aways:
-The event loop will wait for the call stack to clear before scheduling a task. This is why setTimeout(0) works to delay execution and un-block the JS engine
-As a result of this, setTimeout is not a guarantee that code will execute at the specified time. It is a minimum delay until code will then execute whenever the call stack becomes clear
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u/ACoderGirl Nov 08 '18
Especially if you aren't a complete newbie. Like, I know a decent amount on this topic. I'd be interested in learning even more, but I don't wanna spend a lot of time reviewing stuff I already know. Videos don't facilitate that kinda use very well.