Perform debounce in React.js

Question

How do you perform debounce in React.js?

I want to debounce the handleOnChange.

I tried with debounce(this.handleOnChange, 200) but it doesn\'t

Answer 1

With debounce you need to keep the original synthetic event around with event.persist(). Here is working example tested with React 16+.

import React, { Component } from 'react';
import debounce from 'lodash/debounce'

class ItemType extends Component {

  evntHandler = debounce((e) => {
    console.log(e)
  }, 500);

  render() {
    return (
      
 {
        e.persist()
        this.evntHandler(e)
      }}>
        ...
      
    );
  }
}
export default ItemType;

With functional component, you can do this -

const Search = ({ getBooks, query }) => {

  const handleOnSubmit = (e) => {
    e.preventDefault();
  }
  const debouncedGetBooks = debounce(query => {
    getBooks(query);
  }, 700);

  const onInputChange = e => {
    debouncedGetBooks(e.target.value)
  }

  return (
    

      

        
          
          
            Search the world's most comprehensive index of full-text books.
          
        
        
          Search
        
      
    
  )
}

References - - https://gist.github.com/elijahmanor/08fc6c8468c994c844213e4a4344a709 - https://blog.revathskumar.com/2016/02/reactjs-using-debounce-in-react-components.html