How do you prevent double-click on a submit button with debounce?
Use debounce with immediate=true: const submit = debounce(() => submitForm(), 500, true). The first click executes immediately, subsequent clicks within 500ms are ignored.
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More FAQs in Debounce Use Cases and Real-World Examples
Search inputs (delay API call), window resize (delay layout recalculation), auto-save (save after editing stops), form validation (validate after input stops), and button click (prevent double-clicks with immediate flag).
300ms. It is fast enough to feel responsive and slow enough to skip intermediate keystrokes. For faster response use 200ms, for slower 500ms.
const onResize = debounce(() => recalculateLayout(), 250); window.addEventListener('resize', onResize). This prevents excessive layout recalculation while the user is dragging the window.
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