Simple Autocomplete component for WP Gutenberg

simple-autocomplete.js

/**
 * A very simple autocomplete component
 *
 * This is to replace the OOTB Gutenberg Autocomplete component because it is
 * currently broken as of v4.5.1.
 *
 * See Github issue: https://github.com/WordPress/gutenberg/issues/10542
 *
 * Note: The options array should be an array of objects containing labels and values; i.e.:
 *   [
 *     { value: 'first', label: 'First' },
 *     { value: 'second', label: 'Second' }
 *   ]
 */

// Load external dependency.
import { isEmpty } from 'lodash';

function MyAutocomplete( {
  label,
  id,
  value,
  onChange,
  options = [],
} ) {
  // Construct a unique ID for this block.
  const blockId = `my-autocomplete-${ id }`;

  // Function to handle the onChange event.
  const onChangeValue = ( event ) => {
    onChange( event.target.value );
  };

  // Return the block, but only if options were passed in.
	return ! isEmpty( options ) && (
    <div>
      { /* Label for the block. */ }
      <label for={ blockId }>
        { label }
      </label>

      { /* Input field. */ }
      <input
        list={ blockId }
        value={ value }
        onChange={ onChangeValue }
      />

      { /* List of all of the autocomplete options. */ }
      <datalist id={ blockId }>
        { options.map( ( option, index ) =>
          <option value={ option.value } label={ option.label } />
        ) }
      </datalist>
    </div>
	);
};

export default MyAutocomplete;

I get this error in the browser console every time an item is selected.

 Uncaught TypeError: Cannot read properties of undefined (reading 'toLowerCase')
at HTMLDocument.eval (eval at <anonymous> (eval at ExRmtSvrCd (eval at <anonymous> (wit.js:206))), <anonymous>:1:29484)

By the way, is it possible to search posts by typing a partial post title?

@mipon I just tried and I am not seeing that error. (Testing on Chrome latest.) I am also curious about the error talking about toLowerCase (which is not used by this component). I wonder if it is conflicting with something else in your code. Would you be comfortable sharing the code that is using the autocomplete component?