I am trying to mimic the default behavior of using the slot tag in a parent component. When I use <template v-slot> The content doesn't automatically go there. What is the correct way to do this without using the slot tag?, as I read that this will be depreciated. Thank you
Actually, it's the slot attribute that is deprecated (not the built-in <slot> component).
Before v2.6, the slot attribute was used to specify the name of the slot for the given content, and slot-scope received the slot props:
<base-layout>
<template slot="header" slot-scope="{ subtitle }">
<h1>Here might be a page title</h1>
<h2>{{ subtitle }}</h2>
</template>
<p>A paragraph for the main content.</p>
<p>And another one.</p>
<template slot="footer">
<p>Here's some contact info</p>
</template>
</base-layout>
From v2.6 forward, those two attributes are combined/replaced with the v-slot directive, where the slot name is given as an argument, and any slot props are received in the binding value:
<base-layout>
<template v-slot:header="{ subtitle }">
<h1>Here might be a page title</h1>
<h2>{{ subtitle }}</h2>
</template>
<p>A paragraph for the main content.</p>
<p>And another one.</p>
<template v-slot:footer>
<p>Here's some contact info</p>
</template>
</base-layout>
Related
I wonder how to add components as slot content. Instead of doing it like:
<template v-slot:content>CONTENT HERE</template>
I'd like to pass a component.
PkDynModalCenter:
<div class="...">
<div id="modalIndicator" class="...">
<slot name="content"></slot>
</div>
</div>
Parent:
<PkDynModalCenter v-if="togglePayment" #closeModal="togglePayment = false">
<PaymentTemplate :info="voucherInfo" name="content"></PaymentTemplate>
</PkDynModalCenter>
But it's not displayed. Docs are very vague there...
Have a look at the docs for named slots: https://vuejs.org/guide/components/slots.html
You can only use your parent code with the default slot, so your PkDynModalCenter should look like this:
<div class="...">
<div id="modalIndicator" class="...">
<slot></slot> <!-- no name → default slot -->
</div>
</div>
With your current code for the modal, you can only call it like you did in your first code snippet.
While I was reviewing headlessui's menu component, I saw the use of 2 components that are nested like the following: (see: https://headlessui.dev/vue/menu)
<template>
<Menu>
<MenuButton>More</MenuButton>
<MenuItems>
<MenuItem v-slot="{ active }">
// some content
</MenuItem>
</MenuItems>
</Menue>
</template>
So as you may see, there is a MenuItem component inside of the MenuItems component. And I need something similar to that so I can use a template and put another component's result into that template.
Here the example of what I am trying to do:
<!-- HeadingComponent.vue -->
<div class="group">
<div class="head">
{{ title }} <button>Create New</button>
</div>
<div class="content">
<!-- I want to put some component's rendered content here -->
</div>
</div>
And this is, let's say, a page where I want to use the common component.
<!-- Blog.vue -->
<HeadingComponent :title="Posts">
<BlogPostsComponent :post="someArray"/> <!-- Some other component which may vary -->
</HeadingComponent>
The question
What kind of changes do I need to do in the component HeadingComponent.vue so it works as I expected?
Slots are a good way to add a component to another or even simple html
docs : https://fr.vuejs.org/v2/guide/components-slots.html
<h1>Vue JS Slots Application</h1>
<div id="app">
<slots>
<template slot="slotA"><pre>Slot A Content from parent.</pre></template>
<template><i>Parent Component Content.</i></template>
</slots>
<hr/>
<slots>
<template slot="slotB">Replace Slot B Default Content</template>
<template><b>Replace Default Slot Content.</b></template>
</slots>
</div>
<template id="aside">
<div>
<h3>My Slots App</h3>
<slot>Default Slot Content</slot><br>
<slot name="slotA"></slot><br>
<slot name="slotB"></slot><br>
</div>
</template>
Example of codepen :
https://codepen.io/brian_kim/pen/NpWKGe
Just in a short time, I found something like slots in VueJS which is definitely what I was looking for.
Here is the guide page:
https://v2.vuejs.org/v2/guide/components-slots
What I did in my problem is that I put <slot></slot> tags inside div whose class is content, and then the last sample I gave (Blog.vue) has worked.
<!-- HeadingComponent.vue -->
<div class="group">
<div class="head">
{{ title }} <button>Create New</button>
</div>
<div class="content">
<!-- I want to put some component's rendered content here -->
<slot></slot>
</div>
</div>
I have a component which renders a standard .
I would like to use slots from my component, I would like to write something like:
<MyComponent>
<header>
Titolo
</header>
<body>
my component body
</body>
</MyComponent>
then final component should be:
<v-dialog>
<h1>
// header slot content
</h1>
// body slot content
</v-dialog>
how can I do this? This only works with <slot> but not with named slot.
To use multiple slots you can use the following syntax:
<MyComponent>
<template v-slot:header>
Titolo
</template>
<template v-slot:body>
<p>my component body</p>
</template>
</MyComponent>
So you can pass some HTML in the template blocks and it will render in the component.
MyComponent.vue has the next content:
<template>
<v-dialog>
<h1>
<slot name="header"></slot>
</h1>
<slot name="body"></slot>
</v-dialog>
</template>
You can define names for your slots in your custom component by using the name attribute available for the <slot> element, e.g. <slot name="header">. If you don't define a name for the slot, its name will just be default. See the Vue.js slots documentation here: https://v2.vuejs.org/v2/guide/components-slots.html
Also, I made a simple usage example that you can check out here: https://codesandbox.io/s/unruffled-mopsa-f47hm?file=/src/App.vue
So in your case, your custom component could look something like this:
<v-dialog>
<slot name="header" />
<slot name="body" />
</v-dialog>
And to use it in the parent component, you could have:
<MyComponent>
<template v-slot:header>
Titolo
</template>
<template v-slot:body>
<p>my component body</p>
</template>
</MyComponent>
I have a child component that uses v-for. I want to be able to have the parent pass down a slot, or something similar of how it wants each item in the v-for display. However, the problem is that the parent does not have access to each individual item in the v-for as it's rendered.
Some things i've tried is passing a slot with specific keys. e.g.
<child-comp :items="items">
<div v-text="item.text" slot="body"/>
</child-comp>
Basic code may look like this for what i'm trying (though it doesn't work)
Parent component would look something like
<template>
<child-comp :items="items>
<div v-text="item.text"
</child-comp>
</template>
items = [{ text: 'hello'}]
Child would look something like this
<template>
<div>
<span v-for="item in items">
<slot></slot>
</span>
</div>
</template>
Note this has to be dynamic because one item might do v-text, another may do something like add more html such as an image, and another may do something completely different.
I believe you're looking for scoped slots.
https://v2.vuejs.org/v2/guide/components-slots.html#Scoped-Slots
Note that the preferred syntax for using scoped slots changed in Vue 2.6.0 so the exact way you write this will depend on which version you're using.
Your child would pass the item to the slot, like this:
<template>
<div>
<span v-for="item in items">
<slot :item="item"></slot>
</span>
</div>
</template>
The parent would look like this for Vue 2.6.0+:
<template>
<child-comp :items="items">
<template v-slot:default="slotProps">
<!-- The parent can put whatever it needs here -->
{{ slotProps.item }}
</template>
</template>
</child-comp>
</template>
Any props passed to the slot by the child will be included in the slotProps. There's no need to call it slotProps and in practice it is usually destructured (see the docs for more details).
For Vue 2.5 you'd use slot-scope instead:
<template>
<child-comp :items="items">
<template slot-scope="slotProps">
<!-- The parent can put whatever it needs here -->
{{ slotProps.item }}
</template>
</template>
</child-comp>
</template>
Prior to Vue 2.5.0 slot-scope was called scope.
I use different vuetify components, for example v-menu. It has a template like this:
<v-menu>
<a slot="activator">menu</a>
<v-list>
<v-list-tile>Menu Entry 1</v-list-tile>
<v-list-tile>Menu Entry 2</v-list-tile>
</v-list>
</v-menu>
Suppose I want to add another wrapper around it. That is my special menu component that has some predefined menu options. And I want it to has an activator slot as well. And the last should be somehow assigned to the original v-menu activator slot. Is it possible?
Example:
// index.vue:
<template>
<my-special-menu>
<button>My special menu trigger</button>
</my-special-menu>
</template>
// MySpecialMenu.vue
<template>
<v-menu>
<slot slot="activator"/> <-- I don't know how to write this line
<v-list>...</v-list>
</v-menu>
</template>
<slot slot="activator"> is an incorrect equation. The goal is to pull the content from the parent (that is <button>..</button> in the example), and use it as slot="activator" in v-menu.
I can write it like this:
<v-menu>
<a slot="activator"><slot/></a>
...
</v-menu>
But this case the result template will be:
<div class="v-menu__activator">
<a>
<button>My special menu trigger</button>
</a>
</div>
That's not exactly what I want. Is it possible to get rid off <a> wrapper here?
Update:
We can use a construction like <template slot="activator"><slot name="activator"/></template> to throw some slot to a grand child. But what if we have multiple slots and we want to proxy them all? That's like inheritAttrs and v-bind="$attrs" for slots. Is it currently possible?
For example, there's <v-autocomplete> component in vuetify that has append, prepend, label, no-data, progress, item, selection etc slots. I write some wrapper component around this, it currently looks like:
<template>
<v-autocomplete ..>
<template slot="append"><slot name="append"/></template>
<template slot="prepend"><slot name="prepend"/></template>
<template slot="label"><slot name="label"/></template>
...
<template slot="item" slot-scope="props"><slot name="item" v-bind="props"/></template>
</v-autocomplete>
</template>
Is it possible to avoid all slots enumeration here?
If you put the slot attribute on a html element, that html element is passed to the child component to fill the slot with that name. If you don't want to pass along a html element, you can use slot on a template tag within your component. A template tag groups elements, but does not render to a html element, which is perfect here. You can use template tags also for other things, such as to group elements in a v-if for example, or to repeat multiple elements with a v-for.
// App.vue
<template>
<div id="app">
<test>
<template slot="activator">
Click <b>me</b>!
</template>
</test>
</div>
</template>
// Test.vue
<template>
<div class="wrapper">
<grand-child>
<template slot="activator">
<slot name="activator"></slot>
</template>
</grand-child>
This is some text
</div>
</template>
// GrandChild.vue
<template>
<div>
<a href="#" #click="toggle = !toggle">
<slot name="activator">Default</slot>
</a>
<div v-if="toggle">This appears and disappears</div>
</div>
</template>
Edit: If you want to do this for arbitrary slots, this is also possible. this.$slots contains the slots and their content, so with something like the following, you can pass the slot content to a slot with the same name:
<grand-child>
<template v-for="(_, slot) in $slots">
<template :slot="slot">
<slot :name="slot"></slot>
</template>
</template>
</grand-child>
For completeness sake, scoped slots can be accessed through $scopedSlots and be propagated like so:
<grand-child>
<template v-for="(_, slot) in $scopedSlots" v-slot:[slot]="props">
<slot :name="slot" v-bind="props" />
</template>
</grand-child>
source and comment
I had EsLint errors because of the depreciated :slot and $scopedSlots attributes.
So I combined both of #Sumurai8 answers like this and it works great:
<template v-for="(_, slot) in $slots" v-slot:[slot]>
<slot :name="slot"></slot>
</template>
If you have both named and unnamed slots with props:
Vue 3
<template v-for="(_, name) in $slots" #[name]="slotData">
<slot :name="name" v-bind="slotData || {}" />
</template>
Typescript version
<template v-for="(_, name) in ($slots as {})" #[name]="slotData">
<slot :name="name" v-bind="slotData || {}" />
</template>