updateInputValue(event){
    this.setState({
      inputValue: event.target.value
    });
  }
// this a method to update the value of this.state.inputValue
this a method to update the value of this.state.inputValue
this a method to update the value of this . state . inputValue
updateInputValue(event){
    this.setState({
      inputValue: event.target.value
    });
  }
updateInputValue ( event ) { this . setState ( { inputValue : event . target . value } ) ; }
this a method to update the value of this.state.inputValue
this a method to update the value of this . state . inputValue