unable to access array

Question

here's my state:

state={show: false,addDisplay:true,key:'',sections: [{title:'primary',
                                                         data:['a','b']
                                                      }]
        }

and here I'm trying to setState:

this.setState({...this.state,sections: [{title:'primary',
                                      data: [...this.state.sections.data,this.state.input]
                                       }]
             })

why is this.state.sections.data undefined?

Because this.state.sections is an array, you aren't accessing it like it's an array — Patrick Evans
– Patrick Evans, Commented Jun 5, 2018 at 14:50

calm · Accepted Answer · 2018-06-05 14:51:24Z

1

this.state.sections is an array, try with ...this.state.sections[0].data

answered Jun 5, 2018 at 14:51

calm

4224 silver badges10 bronze badges

Sign up to request clarification or add additional context in comments.

Collectives™ on Stack Overflow

unable to access array

1 Answer 1

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

Comments

Your Answer

Sign up or log in

Post as a guest

Related