What happens when v-if and v-for are combined in vue?

When v-if and v-for instructions are used at the same time: 1. v-if takes precedence. If it is false, the element will not be rendered; 2. If v-if is true, the element will be rendered according to v-for Iterative rendering. Example: v-if checks item.visible, v-for iterates items, and only renders item.name when item.visible is true.

Use v-if and v-for together in Vue

When v-if and v-for are used together in Vue When the v-for directive is used together, the following happens:

Priority

The v-if directive has higher priority. This means that if an element has both v-if and v-for directives, the v-if directive will be executed first.

Rendering Operations

If the v-if directive is false, the element will not be rendered. If the v-if directive is true, the element will be rendered based on the v-for directive.

Example

The following example demonstrates how to use the v-if and v-for directives:

<code class="html"><template>
  <ul>
    <li v-for="item in items" v-if="item.visible">
      {{ item.name }}
    </li>
  </ul>
</template></code>

In this example:

# The

##v-for directive iterates through the
• items array, rendering the
• element for each element in the array. The
v-if directive checks the
• item.visible property. The
• element will only be rendered if item.visible is true.

Therefore, the

element that displays item.name is rendered only when item.visible is true. .

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