Use Slot Vue Js

2021年10月8日
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*Use Slot Vue Js Online
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A component can be 100% responsible for generating its output, like in this case:
or it can also let the parent component inject any kind of content into it, using slots.
Vue provides a way of extracting and reusing the state and logic of a component, but the template is deemed single-use only. Blackjack hourly win rate. In this article, I’ll show you a hack for extending templates using HTML pre-processing. The v-slot directive was introduced in Vue 2.6.0, offering an improved, alternative API to the still-supported slot and slot-scope attributes. The full rationale for introducing v-slot is described in this RFC. Vue.js - The Progressive JavaScript Framework. This change unifies normal and scoped slots in 3.x. Here is a quick summary of what has changed.
What is a slot? It’s a space in your component output that is reserved, waiting to be filled.
Analysis vue.js deeply. Render-slot 的参数 name 代表插槽名称 slotName,fallback 代表插槽的默认内容生成的 vnode 数组。 先忽略 scoped-slot,只看默认插槽逻辑。. It is rare that you would use this slot — instead create a custom input. Help: The help text value that appears after the element. Errors: The errors that are displayed for a given input. Defaults to a FormulateErrors component. Default: The default slot is already reserved for use as a pass-through on the element slot.
You define a slot by putting <slot></slot> in a component template:
When using this component, any content added between the opening and closing tag will be added inside the slot placeholder:
If you put any content side the <slot></slot> tags, that serves as the default content in case nothing is passed in.
A complicated component layout might require a better way to organize content, with multiple slots as well.
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This is why Vue offers us named slots.Named slots
With a named slot you can assign parts of a slot to a specific position in your component template layout, and you use a slot attribute to any tag, to assign content to that slot.
Anything outside any template tag is added to the main slot.
For convenience I use a page single file component in this example:Use Slot Vue Js Online
Here is how we can use it, providing the slots content, in a parent component:
There is a handy shorthand, #:
Note: Vue 2.6 deprecated the slot attribute in favor of v-slot, and requires it to be added to a template tag (while slot could be applied to any tag)Scoped slots
In a slot, we can’t access the data contained in the child component from the parent.
Online slot apps real money. Vue recognizes this use case and provides us a way to do so:
In the parent we can access the dog name we passed using:Use Slot Vue Json
slotProps is just a variable we used to access the props we passed. You can also avoid setting a variable just to hold the props you pass to the child component, by destructuring the object on the fly:
More vue tutorials:Use Slot Vue Js Download
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