Get random result from API search

Question

I have a simple app that retrieves jokes using the icanhazdadjoke API . There's a search event handler that fetches jokes according to a limit parameter with a default of 15. There's also a randomize button that calls the search method with a limit set to 1. Each time the randomize button is clicked, the same result appears, however--how can I instead get a random single search result?

Here's my search handler:

  // Default parameter
  getJokes(limit = 15) {
    this.setState({ isFetchingJokes: true });

    fetch(
      `https://icanhazdadjoke.com/search?term=${
        this.state.searchTerm
      }&limit=${limit}`,
      {
        method: 'GET',
        headers: {
          Accept: 'application/json'
        }
    })
      .then(response => response.json())
      .then(json => {
        const jokes = json.results;
        this.setState({
          jokes,
          isFetchingJokes: false
        })
      });
  };

When the randomize button is clicked, the search handler is called with a limit of 1 (it's being passed as a prop on the rendered component, which is from another file: onRandomize={() => this.getJokes(1)} )

Full code: App.js retrieval-form.js

Answer 1

使用api请求你可以得到所有数组，你随机选择这段代码

var joke = jokes[Math.floor(Math.random()*jokes.length)];

Answer 2

In two ways you can get randomized single result

1. You have to randomize the result in back end and then limit to 1.

2.By using a function that set random one from the array

 randomJoke(arr) {
    var joke = arr[Math.floor(Math.random()*arr.length)];
    this.setState({jokes: [joke] });
 }