How to toggle boolean state of react component?

Question

I\'d like to know how to toggle a boolean state of a react component. For instance:

I have boolean state check in the constructor of my component:

const         


        

Answer 1

Try:

 this.setState({check: !this.state.check.value})}/> Checkbox 

Using check: !check.value means it is looking for the check object, which you haven't declared.

You need to specify that you want the opposite value of this.state.check.