How to set default Checked in checkbox ReactJS?

Question

I\'m having trouble to update the checkbox state after it\'s assigned with default value checked="checked" in React.

var rCheck = React         


        

Answer 1

              
              Filter Gasoil
            

handleChangeFilGasoil = (e) => {
    if(e.target.checked){
        this.setState({
            checkedBoxFG:e.target.value
        })
        console.log(this.state.checkedBoxFG)
    }
    else{
     this.setState({
        checkedBoxFG : ''
     })
     console.log(this.state.checkedBoxFG)
    }
  };