The magic of Debouncing in creating reactive Search Bars
Let's just get straight to the point,, ye? Imagine a search bar that fetches results as you type. Without debouncing, every keystroke fires an API call flooding your server and slowing things down. Debouncing ensures the search only triggers after you stop typing for a set time. This is one of the best use cases for debouncing. function debounce(func, delay) { let timeoutId; return function (...args) { clearTimeout(timeoutId); // Reset the timer timeoutId = setTimeout(() => func.apply(this, args), delay); }; } // Usage: const search = debounce((query) => { console.log(`Searching for: ${query}`); }, 300); search("a"); // Ignored search("ap"); // Ignored search("app"); // Only this runs after 300ms Each keystroke resets the delay timer. The function only runs when typing pauses for 300ms. Debouncing is everywhere resize events, scroll handlers, button clicks to prevent double submissions.
Let's just get straight to the point,, ye?
Imagine a search bar that fetches results as you type. Without debouncing, every keystroke fires an API call flooding your server and slowing things down. Debouncing ensures the search only triggers after you stop typing for a set time. This is one of the best use cases for debouncing.
function debounce(func, delay) {
let timeoutId;
return function (...args) {
clearTimeout(timeoutId); // Reset the timer
timeoutId = setTimeout(() => func.apply(this, args), delay);
};
}
// Usage:
const search = debounce((query) => {
console.log(`Searching for: ${query}`);
}, 300);
search("a"); // Ignored
search("ap"); // Ignored
search("app"); // Only this runs after 300ms
Each keystroke resets the delay timer. The function only runs when typing pauses for 300ms.
Debouncing is everywhere resize events, scroll handlers, button clicks to prevent double submissions.
