addEventListener and control flow

Question

Basically, when I put an addEventListener in my code, does the script stop executing until the event happens and gets listened or the code keeps getting executed no matter what?

I mean, if an event that I want to listen and that is placed at the start of my script does not happen, does it block my whole script?

If you can, don't just answer yes or no, I would be glad if you could tell what the interpreter does in those situations.

The code keeps running. When the event occurs, the callback function runs. — Barmar, Jul 05 '22 at 14:58
but why is that? I thought it would act like a function call. — Lorenzo Zabot, Jul 05 '22 at 14:59
Why do you think it won't? You could confirm your own suspicions by writing some example code. Please read more https://developer.mozilla.org/en-US/docs/Web/API/EventTarget/addEventListener — evolutionxbox, Jul 05 '22 at 14:59
being a newbie, I thought that it would act like a function call. — Lorenzo Zabot, Jul 05 '22 at 15:00
Not *immediately* when the event happens. See https://developer.mozilla.org/en-US/docs/Web/JavaScript/EventLoop — IT goldman, Jul 05 '22 at 15:01
In what way? If the code ran immediately it wouldn't be waiting for the event — evolutionxbox, Jul 05 '22 at 15:01
If it waited, how could you create event listeners for multiple inputs? — Barmar, Jul 05 '22 at 15:05

score 1 · Answer 1 · answered Jul 05 '22 at 15:03

1

Javascript eventloop

https://developer.mozilla.org/en-US/docs/Web/JavaScript/EventLoop

The following link would explain you well. if still you are having problem feel free to ask.

answered Jul 05 '22 at 15:03

Raj Chudasama

41
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addEventListener and control flow

1 Answers1