ReactJS Array.push function not working in setState

Question

I\'m making a primitive quiz app with 3 questions so far, all true or false. In my handleContinue method there is a call to push the users input from a radio fo

Answer 1

I have found a solution. This shoud work for splice and others too. Lets say that I have a state which is an array of cars:

this.state = {
  cars: ['BMW','AUDI','mercedes']
};
this.addState = this.addState.bind(this);

Now, addState is the methnod that i will use to add new items to my array. This should look like this:

  addState(){

let arr = this.state.cars;
arr.push('skoda');
this.setState({cars: arr});
}

I have found this solution thanks to duwalanise. All I had to do was to return the new array in order to push new items. I was facing this kind of issue for a lot of time. I will try more functions to see if it really works for all functions that normally won't. If anyone have a better idea how to achieve this with a cleaner code, please feel free to reply to my post.