how to map over arrays vuejs

Mapping over Arrays in Vue.js

To map over arrays in Vue.js, you can use the v-for directive. Here are the steps to do it:

1. Start by creating an array in your Vue component's data property. This array will contain the items you want to iterate over.

2. In your template, use the v-for directive to iterate over the array. The syntax for v-for is v-for="item in array". You can also provide an index by using v-for="(item, index) in array".

3. Inside the v-for directive, you can access the current item and index using the variable names you specified in the directive.

4. Use the current item and index to display or manipulate the data as needed within the template.

Here's an example of how to map over an array in Vue.js:

<template>
  <div>
    <ul>
      <li v-for="(item, index) in items" :key="index">{{ item }}</li>
    </ul>
  </div>
</template>

<script>
export default {
  data() {
    return {
      items: ['item 1', 'item 2', 'item 3']
    };
  }
};
</script>

In this example, the v-for directive is used to iterate over the items array. Each item in the array is displayed as a list item (<li>) within an unordered list (<ul>). The :key attribute is used to provide a unique identifier for each item in the list.

By following these steps, you can easily map over arrays in Vue.js and display or manipulate the data as needed.

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