Detailed explanation of the default slots in Vue

Detailed explanation of the default slots in Vue

In Vue, slots (Slots) are a very powerful and flexible mechanism for inserting content into components. Vue provides two types of slots: the default slot and the named slot. I'll focus on explaining the default slot and provide two case codes for demonstration.

Default Slot

The default slot is a way to use when passing content to a child component in a parent component. When there is no named slot inside the subcomponent, the content passed to the subcomponent will be placed in the default slot.

1. Basic usage

Let's create a simple component firstMyComponent, it contains a default slot. In the component we use<slot></slot>The tag defines the location of the default slot.

<!--  -->
<template>
  <div>
    <h2>My Component</h2>
    <slot></slot>
  </div>
</template>
<script>
export default {
  name: 'MyComponent'
}
</script>

Now, in the parent component, we can pass the content to the default slot.

<!--  -->
<template>
  <div>
    <my-component>
      <p>This content will go into the default slot.</p>
    </my-component>
  </div>
</template>
<script>
import MyComponent from './';
export default {
  components: {
    MyComponent
  }
}
</script>

2. Use data in slots

The default slot can also contain dynamic data. Let's modifyMyComponent, causing it to display the data passed by the parent component in the slot.

<!--  -->
<template>
  <div>
    <h2>My Component</h2>
    <slot></slot>
    <p>Data from parent: {{ dataFromParent }}</p>
  </div>
</template>
<script>
export default {
  name: 'MyComponent',
  props: {
    dataFromParent: String
  }
}
</script>

Now we can pass data to the child component in the parent component.

<!--  -->
<template>
  <div>
    <my-component :dataFromParent="message">
      <p>This content will go into the default slot.</p>
    </my-component>
  </div>
</template>
<script>
import MyComponent from './';
export default {
  components: {
    MyComponent
  },
  data() {
    return {
      message: 'Hello from parent!'
    };
  }
}
</script>

This example demonstrates how to include static content as well as dynamic data in the default slot.

Hopefully these examples will help you better understand the default slot mechanism in Vue.

This is the end of this article about the detailed explanation of the default slots in Vue. For more related Vue default slot content, please search for my previous articles or continue browsing the related articles below. I hope everyone will support me in the future!