您如何在控制台中终止无限循环（`setInterval`）？

Question

For instance, we could run

 setInterval(function(){console.log("Hello, SO!")}, 2000); 

Hello, SO! gets repeated every two seconds in the terminal. There are 6 repeats in the picture below.

Is there a key combination you could press or command you could type to stop the infinite loop in the console?

Answer 1

This is your best bet that I know of.

var interval = setInterval(() => console.log("hello, world"), 2000);
clearInterval(interval);

Answer 2

To kill intervals, you need a handle to them to pass to clearInterval() . In your image, after you execute setInterval() , you can see the handle is returned to the console as 4491 . In this way, you can kill it like so:

clearInterval(4491);

Alternatively (and better), you should assign that handle return to a variable so you can kill it programmatically:

let interval = setInterval(() => console.log('Hello, SO!'), 2000);
clearInterval(interval);

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Edit:
You can also brute-force. The handle is an int64 number, so it could potentially be enormous, but for almost any app, it'll be small since the handles are incremented. Note that this method could break other packages that rely on intervals.

for (var i = 1; i < 9999; i++) clearInterval(i);

Answer 3

You can stop script execution on the current page using the pause button described here . This will pause all JS on the page though, not just your interval.