How to Handle Resize Events Efficiently with Delayed Event Handling?

Delayed Event Handling for Resize Event

When handling the resize event in JavaScript, it's common to encounter multiple calls during the resizing process. This can lead to performance issues or undesired behavior. To address this, consider using a delayed event handling approach.

Using setTimeout() and clearTimeout()

One effective solution is to utilize the setTimeout() and clearTimeout() functions. Here's how it works:

function resizedw() {
    // Haven't resized in 100ms!
}

var doit;
window.onresize = function() {
    clearTimeout(doit);
    doit = setTimeout(resizedw, 100);
};

In this solution:

• The resizedw function is invoked only after there has been no resize event for the specified delay (in this case, 100 milliseconds).
• clearTimeout() is used to cancel any pending resizedw invocation triggered by previous resize events.
• setTimeout() schedules a new resizedw invocation after the delay, ensuring that it only occurs once after the final resize event.

This approach allows you to defer an action until the end of the resize event, preventing multiple executions.

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