In Vue.js, you can use the v-slot
directive to fetch data from a parent component and pass it down to a child component. This can be done by defining a slot in the parent component and passing data to it as slot props. In the child component, you can access the data passed through the slot props and use it as needed. This allows for dynamic and flexible data communication between components in Vue.js.
How to pass data through a slot in Vue.js?
To pass data through a slot in Vue.js, you can use scoped slots. Scoped slots allow you to pass data from the parent component to the slot content. Here is an example of how to pass data through a slot using scoped slots:
- In the parent component, define a slot and pass data to it using the v-bind directive:
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<template> <div> <my-component> <template v-slot:default="slotProps"> <p>{{ slotProps.data }}</p> </template> </my-component> </div> </template> <script> import MyComponent from './MyComponent.vue'; export default { components: { MyComponent } } </script> |
- In the child component (MyComponent.vue), define a slot with a data prop:
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<template> <div> <slot :data="someData"></slot> </div> </template> <script> export default { data() { return { someData: 'Hello from child component' } } } </script> |
In this example, the parent component <my-component>
passes data to the slot using the slotProps
object. The someData
prop in the child component is then passed to the slot content and rendered as Hello from child component
.
Scoped slots provide a flexible and powerful way to pass data from a parent component to a slot in Vue.js.
What is named slot in Vue.js?
A named slot in Vue.js allows you to define slots in a component with a specific name that can be used to pass content from the parent component. This gives you more control over where the content will be placed in the child component. Named slots are useful when you have multiple slots in a component and need to specify where each piece of content should go.
How to chain slots in Vue.js?
Chaining slots in Vue.js involves passing data from one slot to another in a nested manner. This can be achieved using scoped slots and slot props. Here's an example of how to chain slots in Vue.js:
Parent component:
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<template> <child> <template v-slot:default="parentProps"> <grandchild v-slot="childProps"> {{ childProps.data }} from grandchild </grandchild> </template> </child> </template> <script> import Child from './Child.vue'; export default { components: { Child } } </script> |
Child component (Child.vue):
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<template> <slot :data="data"></slot> </template> <script> export default { data() { return { data: 'Hello' } } } </script> |
Grandchild component:
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<template> <slot :data="data"></slot> </template> <script> export default { data() { return { data: 'World' } } } </script> |
In this example, the parent component passes data to the child component using a scoped slot. The child component then passes the data to the grandchild component using another scoped slot. The grandchild component finally displays the data received from the child component.
By chaining slots in this way, you can pass data down through multiple levels of nested components in Vue.js.