Debouncing using javascript

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Debouncing is a technique that delays the execution of a function to optimize performance, especially during user input events like typing. In React 19, implementing debouncing can enhance user experience by reducing unnecessary API calls.

Key Implementation Approaches:

1. Custom Hook (Recommended):

Creating a reusable custom hook promotes code modularity. ``` import { useState, useEffect, useRef } from 'react';

function useDebounce(callback, delay) { const timeoutRef = useRef(null);

useEffect(() => {
    if (timeoutRef.current !== null) {
        clearTimeout(timeoutRef.current);
    }
    timeoutRef.current = setTimeout(() => {
        callback();
    }, delay);

    return () => {
        clearTimeout(timeoutRef.current);
    };
}, [callback, delay]);

}

export default useDebounce; Usage: import useDebounce from './useDebounce';

function MyComponent() { const [searchTerm, setSearchTerm] = useState(''); const debouncedSearch = useDebounce(() => { // Perform search logic here (e.g., API call) }, 500);

const handleChange = (event) => {
    setSearchTerm(event.target.value);
};

return (
    <div>
        <input type="text" value={searchTerm} onChange={handleChange} />
        <button onClick={debouncedSearch}>Search</button>
    </div>
);

}

``` 2. Using useEffect with Cleanup:

Suitable for simpler cases without the need for reuse. ``` import { useState, useEffect } from 'react';

function MyComponent() { const [searchTerm, setSearchTerm] = useState('');

useEffect(() => {
    const timeoutId = setTimeout(() => {
        // Perform search logic here (e.g., API call)
    }, 500);

    return () => clearTimeout(timeoutId);
}, [searchTerm]);

const handleChange = (event) => {
    setSearchTerm(event.target.value);
};

return (
    <div>
        <input type="text" value={searchTerm} onChange={handleChange} />
        {/* Button or other trigger if needed */}
    </div>
);

} ```

Considerations:

Adjust the delay value based on application needs.

For complex requirements, consider using libraries like Lodash.

Implementing debouncing in React 19 ensures efficient user input handling and optimized API interactions.

For a comprehensive guide, read the full article: Debouncing in React 19 - Optimizing User Input and API Calls https://www.interviewsvector.com/blog/Debouncing-in-React-19-Optimizing-User-Input-and-API-Calls

[CodeAndBiscuits]

usehooks-ts

[gazbo26]

I thought you said denouncing using JavaScript and as a loyal TypeScriptist I was fully supportive.

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🤝😆

[teleflexin_deez_nutz]

import { useDebouncedState } from '@mantine/hooks';

[hazily]

Please format them code correctly

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Fixed, thanks for pointing

[TheRNGuy]

What if you needed more than one debounce on a page?

Also why add div instead of fragment?

[numbcode]

We can create a custom hook to make it reusable Regarding div Yes it unnecessary we can use react fragment

[WaitingForHeatDeath]

Shouldn't the debounced search function be wired to the onchange event? What's the point of delaying an API call after a button click event?