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AI solution for JavaScript Coding Question on BFE.dev
28. implement clearAllTimeout()
One possible solution could be:
// Create an object to keep track of all timeoutsconst timeoutIds = {};// Replace the original setTimeout with a new one that stores the timeout idwindow.setTimeout = function(callback, delay) { const timeoutId = setTimeout(callback, delay); timeoutIds[timeoutId] = true; return timeoutId;};// Replace the original clearTimeout with a new one that clears all timeoutswindow.clearTimeout = function(timeoutId) { clearTimeout(timeoutId); delete timeoutIds[timeoutId];};// Implement clearAllTimeout function that clears all timeoutsfunction clearAllTimeout() { Object.keys(timeoutIds).forEach(timeoutId => { clearTimeout(timeoutId); delete timeoutIds[timeoutId]; });}
In this solution, we create an object timeoutIds
to keep track of all timeouts scheduled using our custom setTimeout
function. When a new timeout is scheduled, we store its id in this object.
The clearTimeout
function is replaced with a new one that first clears the timeout using the original clearTimeout
function and then removes the timeout id from timeoutIds
.
Finally, we implement the clearAllTimeout
function that iterates over all timeout ids in timeoutIds
and clears each timeout using the clearTimeout
function. After that, we remove all ids from the timeoutIds
object.
This way, we can use setTimeout
and clearTimeout
functions as before, but all timeouts can be cleared using clearAllTimeout
function.