What is the behavior of setInterval when dealing with callback functions that exceed the desired interval time?
I have come across information suggesting that the callback may receive the number of milliseconds it was delayed as its first argument. However, I am curious to know if this delay is caused by jitter or due to long-running functions.
Furthermore, does setInterval function differently in various common browsers?
Allow me to share a compelling post on the topic of timers by Jane Doe:
setTimeout(function(){
/* An extensive block of code... */
setTimeout(arguments.callee, 10);
}, 10);
setInterval(function(){
/* An extensive block of code... */
}, 10);
These two sections of code may seem similar in function initially, but there is a key distinction. The setTimeout code will consistently have at least a 10ms delay following the previous callback execution (it could end up being longer, but never shorter), while the setInterval will aim to run a callback every 10ms regardless of when the last callback occurred.
Intervals might run one after the other without delay if they take enough time to execute (longer than the specified delay).
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