This question explores JavaScript and addresses practical considerations related to: How can I debounce a function to limit its execution rate in JavaScript?

Debouncing is a technique to limit the rate at which a function is executed, ensuring it runs only after a specified delay has passed since the last time it was invoked. This is useful for optimizing performance in scenarios like handling window resize or scroll events. function debounce(func, delay) { let timeoutId; return function(...args) { clearTimeout(timeoutId); timeoutId = setTimeout(() => { func.apply(this, args); }, delay); }; } // Example usage: const handleResize = debounce(() => { console.log('Window resized'); }, 300); window.addEventListener('resize', handleResize); ADDITIONAL COMMENT: - The "debounce" function takes two arguments: "func" (the function to debounce) and "delay" (the time in milliseconds to wait before executing the function). - A "timeoutId" variable is used to store the reference to the timeout, allowing it to be cleared if the function is called again before the delay. - The "apply" method is used to ensure the original function's context and arguments are preserved. - In the example, "handleResize" is a debounced version of a function that logs "Window resized" to the console, triggered by the window's resize event. ✅

How can I debounce a function to limit its execution rate in JavaScript?

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How can I debounce a function to limit its execution rate in JavaScript?

Asked on Feb 13, 2026

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Debouncing is a technique to limit the rate at which a function is executed, ensuring it runs only after a specified delay has passed since the last time it was invoked. This is useful for optimizing performance in scenarios like handling window resize or scroll events.

<!-- BEGIN COPY / PASTE -->
        function debounce(func, delay) {
            let timeoutId;
            return function(...args) {
                clearTimeout(timeoutId);
                timeoutId = setTimeout(() => {
                    func.apply(this, args);
                }, delay);
            };
        }

        // Example usage:
        const handleResize = debounce(() => {
            console.log('Window resized');
        }, 300);

        window.addEventListener('resize', handleResize);
        <!-- END COPY / PASTE -->

Additional Comment:

The "debounce" function takes two arguments: "func" (the function to debounce) and "delay" (the time in milliseconds to wait before executing the function).
A "timeoutId" variable is used to store the reference to the timeout, allowing it to be cleared if the function is called again before the delay.
The "apply" method is used to ensure the original function's context and arguments are preserved.
In the example, "handleResize" is a debounced version of a function that logs "Window resized" to the console, triggered by the window's resize event.

✅ Answered with JavaScript best practices.

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How can I debounce a function to limit its execution rate in JavaScript?

Asked on Feb 13, 2026

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