Is it possible for a number returned by the setTimeout() function in JavaScript to be negative?
Currently, I've observed that the timeoutIds generated are sequentially numbered in Chrome as 1,2,3,4,5,6... While in Firefox, they start from number 4 and so on.
Are these behaviors consistent across different browsers and JavaScript engines?
What happens if the timeoutId number reaches the maximum integer value?
Per information from Mozilla
The timeoutID received is a positive integer value
A pool of IDs is utilized, but not necessarily returned back to the pool after use (this varies depending on browser implementation - comments suggest they usually are not). Depleting all available IDs would likely indicate a programming error due to excessive usage.
It's worth noting that the exact method of ID generation is unspecified, so different browsers may start from different numbers. The pool is shared with setInterval, impacting the allocation of IDs.
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