Function handleKeyDown

component/DropDown.js:355–364

(e)

    },

    handleKeyDown(e){
        const {keyCode} = e;
        const value = this.inputField().value;
        this.setState({
            hasInput: true, 
        });        
        
        if (keyCode === BACKSPACE_KC && value === '') this.props.onSelectChange();
        e.target.style.width = (value.length + 1) * 12 + 'px';
    },


    handleBlur(){