试图消除搜索功能调用的反跳导致没有事件传递给该功能

Question

I am working with a library named lodash using its debounce() function to sort of limit api calls for search suggestions ie instead of calling api every time user changes a field I debounce it and wait 300ms from when they finish typing:

it looks like this in my component:

class myComponent extends Component {

  //Handle listing search
  searchListing(event) {
    console.log(event.target.value);
  }

  //Render
  render() {
    const listingSearch = _.debounce( () => { this.searchListing() }, 300  );

    return (
        <TextInput onChange={listingSearch}/>

    );
  }
}

it works and calls the function however I get an error saying: Uncaught TypeError: Cannot read property 'target' of undefined

So I tried passing an event like so:

const listingSearch = _.debounce( (event) => { this.searchListing(event) }, 300  );

Now error says: Uncaught TypeError: Cannot read property 'value' of null after inspecting this event I'm passing, I can see that it has empty target, so is not working correctly.

Answer 1

Solution to my problem was to include event.persist(); inside my onChange handler function.

So:

  searchListing(event) {
    event.persist();
    console.log(event.target.value);
  }