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How can I debounce a function to limit how often it runs?

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How can I debounce a function to limit how often it runs? Pending Review

Asked on Feb 22, 2026

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Debouncing is a technique used to limit the rate at which a function is executed. It ensures that the function is only called after a specified delay has elapsed since the last time it was invoked.

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

        // Usage example:
        const logMessage = () => console.log("Function executed!");
        const debouncedLogMessage = debounce(logMessage, 1000);

        // Call the debounced function
        debouncedLogMessage();
        debouncedLogMessage();
        debouncedLogMessage();
        // "Function executed!" will be logged only once after 1 second
        <!-- END COPY / PASTE -->

Additional Comment:

The "debounce" function takes two arguments: the function to debounce ("func") and the delay in milliseconds ("delay").
It returns a new function that clears the previous timeout and sets a new one each time it's called.
The "apply" method is used to maintain the correct "this" context and pass arguments to the original function.
In the example, "debouncedLogMessage" will only log "Function executed!" once, no matter how many times it's called within the 1-second delay.

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How can I debounce a function to limit how often it runs? Pending Review

Asked on Feb 22, 2026

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