I'm trying to generate a random quote from data obtained through an api. I generated a random index but when I click on the corresponding button I'm not getting back a random quote. I'm not getting any apparent errors.

randomQuote() {
    const index = Math.floor(Math.random() * this.quotes.length);
    return this.quotes[index]
  },

Here's my data object.

data: {
    data: [],
    quotes: [],
    currentIndex: 0,
    currentPage: 1,
  },

Here's my axios call:

axios.get(url).then(res => {
        this.data = res.data;
        this.quotes = this.data;
      });