Struggling to retrieve unpredictable data in a Vue.js component

Question

Struggling to retrieve unpredictable data in a Vue.js component

Help! I'm trying to randomly display one of these names in my HTML, but I can't seem to make it work:

Vue.component('modal', {
  template: '#modal-template',
 data: {
    items: [
      { name: 'Elena' },
      { name: 'Ares' }
     ]
 }, nowName : "",

 created () {
    const idx = Math.floor(Math.random() * this.items.length);
    this.nowName = this.items[idx]
  }
})

I've been struggling with my Vue code. I'm not sure if it's correct and if I can retrieve the random name using {{ nowName }}. I've tried different methods and functions in data, but nothing seems to give me a random result.

javascript vue.js data-binding

Answer 1

Answer №1

Have you considered whether the function is truly returning a random item? Keep in mind that idx will always be an integer value between 0 and this.items.length (either 0 or 1). Take for example, when running the code snippet below 10 times:

const items = [
  { name: 'You' },
  { name: 'Leonidas' }
];
new Array(10).fill(null).forEach((num) => {
  const idx = Math.floor(Math.random() * items.length);
  console.log(items[idx]);
});

nowName does not seem to be located within the data() function, which is typically where it should be. Could this be causing your issue?

Answer 2

Have you considered whether the function is truly returning a random item? Keep in mind that idx will always be an integer value between 0 and this.items.length (either 0 or 1). Take for example, when running the code snippet below 10 times:

const items = [
  { name: 'You' },
  { name: 'Leonidas' }
];
new Array(10).fill(null).forEach((num) => {
  const idx = Math.floor(Math.random() * items.length);
  console.log(items[idx]);
});

nowName does not seem to be located within the data() function, which is typically where it should be. Could this be causing your issue?

Struggling to retrieve unpredictable data in a Vue.js component

Answer №1

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