How can i use this.state within this.state in constructor?

Question

I'm use state in this.state in constructor. how can i use immediately state after declaration?

    constructor() {
        super(...arguments);
        this.state = {
            client: null,
            client1: this.state.client,
        }
   }

@KaungMyatLwin i need to use this scenario to assign dynamic array value to chart options. i retrieve one by one value from AWS query and update value of line chart options — Navneet GVM, Sep 17 '19 at 07:09

score 3 · Answer 1 · answered Sep 17 '19 at 07:08

You can have your state in an object outside the assignment itself and then assigning the state to that object modifying whatever data you may want:

constructor(props) {
  super(props);
  const state = { client: null }
  this.state = { ...state, client1: state.client };
}

Check this one out: "this" inside object

score 0 · Answer 2 · answered Sep 17 '19 at 07:06

you could do:

constructor() {
    super(...arguments);
    this.state = {
        client: null,    
    }
    this.state.client1 = this.state.client;
}

Even though, you could also assign null to client1, as @zmag mentioned, if you always assign null to this.state.client

How can i use this.state within this.state in constructor?

2 Answers2