Attempting to simulate a long running operation using a loop, like this:
var x, y;
x = true;
y = false;
while (x) {
if (!y) {
setTimeout(function() => {
x = false;
}, 1000);
y = true;
}
}
Wondering why the line x = true; doesn't seem to get executed?
setTimeout simply schedules a function to run after a specified number of seconds. The function waits in the thread execution stack until the designated time has passed.
It's important to note that the timeout function will not disrupt the flow of your while loop. It will only execute after the main thread has finished its execution...which may be never in this case.
If you're interested, you can refer to the HTML5 draft spec for timers here.
There is an issue with the syntax of your setTimeout function.
let isTrue = true;
let isFalse = false;
while (isTrue) {
if (!isFalse) {
setTimeout(function() {
isTrue = false;
}, 1000);
isFalse = true;
}
}
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