CODEWITHSUNDEEP
javascriptreactjs
Kristoffer Tølbøll
Kristoffer Tølbøll

Reputation: 3357

Access nested array items in javascript

I'm using the javascript trivia API to make an application. I'm having issues displaying each of the values of the wrong answer.

So far I have saved them in my state, along with the questions, and the correct answer

componentDidMount() {
  axios.get('https://opentdb.com/api.php?amount=50').then(response => {
    for (var key in response.data.results) {
      console.log(response.data.results[key].question)
      this.setState(prevState => ({
        questions: [...prevState.questions, response.data.results[key].question],
        answers: [...prevState.answers, response.data.results[key].correct_answer],
        wrongAnswers: [...prevState.wrongAnswers, response.data.results[key].incorrect_answers]

      }));
    }
  });
}

this works fine, but my issue is that the wrong answers is an array itself, so whenever I display the state

<p>{this.state.wrongAnswers[this.state.random]}</p> // prints array of strings

I get another array, and I can access each element using the dot operator, because I don't know the answers since the questions are chosen randomly.

I want to display the values dynamically using radio buttons. Is there a way to access each element of the nested array and display them dynamically?

Upvotes: 1

Views: 124

Answers (1)

Revanth M
Revanth M

Reputation: 113

You can loop through that array and show the wrong answers

{Array.isArray(this.state.wrongAnswers) && this.state.wrongAnswers.map((wrongAnswer, index) => {
  <p key={'Key-'+index}>wrongAnswer}</p>
}}

Upvotes: 2

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