Answer by Pritish Vaidya for Type Error in filter function

Assuming that your json file is as shown here, there are two problems with your code.

• Destructuring is wrong. Since you're directly importing an object from a json file as name services, which has not been assigned to any named constant / variable, therefore it cant be destructured.

Therefore you must change the code as

import services from './services.json';

componentDidMount(){
      this.setState({services});
  }

• You're trying to convert a service object toLowerCase here
  ser =>ser.toLowerCase() which needs to be changed to

  services.filter(({ser}) => ser.toLowerCase().slice(0, inputLength) === inputValue);