I want to retrieve the value of my checkbox when it is checked.

I am using this http://react-component.github.io/checkbox/.

My code looks like this.

<div className=user_box>

    { check.map((values , i)=> {

        return <Checkbox

            name = checkbox

            onChange={this.checkvalue.bind(this)}

            value={values.username} 

        />

    })}

</div>

My function:

checkvalue(e){

    // var all_users = [];

    // var value = this.checkbox.value;

    // all_users.push(value);

    // console.log(all_users);



    console.log('checkbox checked:', (e.target.checked));

}

I'm not understanding how to retrieve the value of the checkbox.