How to update a fragment in react native?

Question

React

How to delete an object by reference?

<TouchableHighlight {...props} ref={this.myRef} style={[{ borderColor: 'white', borderWidth: 1, backgroundColor: isFocus ? this.borderColor : this.borderColorOld }, props.style]}>
                <Text style={{ fontFamily: 'Roboto-Light', color: !isFocus ? this.borderColor : 'black', fontSize: RFPercentage(2.5),justifyContent:'center' }}>{props.text}</Text>
            </TouchableHighlight>

How do you delete an object if you have a reference to it?