Slot Into Definition

  1. A word used by Atlanta gang Know as 'YSL' (Young,Slime,Life) to show a form of love for each other Oficially meaning (Slime,Love,All,The,Time).
  2. Slot props allow us to turn slots into reusable templates that can render different content based on input props. This is most useful when you are designing a reusable component that encapsulates data logic while allowing the consuming parent component to customize part of its layout.
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To slot into translation french, English - French dictionary, meaning, see also 'slot machine',expansion slot',time slot',sloth', example of use, definition, conjugation, Reverso dictionary. See our slot load disc drive definition for further information. A slot is a computer processor connection designed to make upgrading the processor easier, where the user would only have to slide a processor into a slot. The original slot, or Slot 1 (pictured below), was first released by the Intel Corporation in 1997 as a.


Also found in: Dictionary, Thesaurus. Slot into place definition

slot

1
1. an air passage in an aerofoil to direct air from the lower to the upper surface, esp the gap formed behind a slat
2. a vertical opening between the leech of a foresail and a mast or the luff of another sail through which air spills from one against the other to impart forward motion

slot

2
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005

slot

[slät] (aerospace engineering)
An air gap between a wing and the length of a slat or certain other auxiliary airfoils, the gap providing space for airflow or room for the auxiliary airfoil to be depressed in such a manner as to make for smooth air passage on the surface.
Any of certain narrow apertures made through a wing to improve aerodynamic characteristics.
(computer science)
A punched-out area of a hand-sorted card to connect two or more guide holes; slots can be extended to the outside edge with notches.
(design engineering)
(electricity)
One of the conductor-holding grooves in the face of the rotor or stator of an electric rotating machine.
(mining engineering)
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

slot

Air from the lower surface of the wing passes through it on to the upper surface of the aileron.
i. Fixed openings near the leading edge of the wing. At higher angles of attack, air from below the wing is guided through the slots and discharged over the upper surface, tangential to the wing surface, thereby re-energizing the boundary layer allowing a higher critical angle of attack. Slots are located ahead of ailerons and thus help maintain aileron control at lower speeds and at high angles of attack.
ii

Slot Into Definition Dictionary

. The gap between the wing and the hinged trailing-edge surface (flap, aileron) through which air flows attached across the movable upper surface.
iii. A block of time allocated to an airport user to perform an aircraft operation (takeoff and landing) or for using a specific facility.
iv. The physical aperture of a slot aerial. See slot aerial.
An Illustrated Dictionary of Aviation Copyright © 2005 by The McGraw-Hill Companies, Inc. All rights reserved

slot

(1) A receptacle for a printed circuit board. Synonymous with 'socket.' See expansion card and plugs and sockets.
(2) A receptacle for inserting and removing a disk or tape cartridge. Removable storage was popular in the 1990s. See removable drive.
(3) In communications, a narrow band of frequencies. See time slot.Definition
(4) Reserved space for temporary or permanent storage of instructions, data or codes. See buffer.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.

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You’re browsing the documentation for v2.x and earlier. For v3.x, click here.

This page assumes you’ve already read the Components Basics. Read that first if you are new to components.

In 2.6.0, we introduced a new unified syntax (the v-slot directive) for named and scoped slots. It replaces the slot and slot-scope attributes, which are now deprecated, but have not been removed and are still documented here. The rationale for introducing the new syntax is described in this RFC.

Slot Content

Vue implements a content distribution API inspired by the Web Components spec draft, using the <slot> element to serve as distribution outlets for content.

This allows you to compose components like this:

Then in the template for <navigation-link>, you might have:

When the component renders, <slot></slot> will be replaced by “Your Profile”. Slots can contain any template code, including HTML:

Or even other components:

If <navigation-link>‘s template did not contain a <slot> element, any content provided between its opening and closing tag would be discarded.

Compilation Scope

When you want to use data inside a slot, such as in:

That slot has access to the same instance properties (i.e. the same “scope”) as the rest of the template. The slot does not have access to <navigation-link>‘s scope. For example, trying to access url would not work:

As a rule, remember that:

Everything in the parent template is compiled in parent scope; everything in the child template is compiled in the child scope.

Fallback Content

There are cases when it’s useful to specify fallback (i.e. default) content for a slot, to be rendered only when no content is provided. For example, in a <submit-button> component:

We might want the text “Submit” to be rendered inside the <button> most of the time. To make “Submit” the fallback content, we can place it in between the <slot> tags:

Now when we use <submit-button> in a parent component, providing no content for the slot:

will render the fallback content, “Submit”:

But if we provide content:

Then the provided content will be rendered instead:

Named Slots

Updated in 2.6.0+. See here for the deprecated syntax using the slot attribute.

There are times when it’s useful to have multiple slots. For example, in a <base-layout> component with the following template:

For these cases, the <slot> element has a special attribute, name, which can be used to define additional slots:

A <slot> outlet without name implicitly has the name “default”.

To provide content to named slots, we can use the v-slot directive on a <template>, providing the name of the slot as v-slot‘s argument:

Now everything inside the <template> elements will be passed to the corresponding slots. Any content not wrapped in a <template> using v-slot is assumed to be for the default slot.

However, you can still wrap default slot content in a <template> if you wish to be explicit:

Either way, the rendered HTML will be:

Note that v-slot can only be added to a <template> (with one exception), unlike the deprecated slot attribute.

Scoped Slots

Updated in 2.6.0+. See here for the deprecated syntax using the slot-scope attribute.

Sometimes, it’s useful for slot content to have access to data only available in the child component. For example, imagine a <current-user> component with the following template:

We might want to replace this fallback content to display the user’s first name, instead of last, like this:

That won’t work, however, because only the <current-user> component has access to the user and the content we’re providing is rendered in the parent.

Slot Into Definition Synonyms

To make user available to the slot content in the parent, we can bind user as an attribute to the <slot> element:

Attributes bound to a <slot> element are called slot props. Now, in the parent scope, we can use v-slot with a value to define a name for the slot props we’ve been provided:

In this example, we’ve chosen to name the object containing all our slot props slotProps, but you can use any name you like.

Abbreviated Syntax for Lone Default Slots

In cases like above, when only the default slot is provided content, the component’s tags can be used as the slot’s template. This allows us to use v-slot directly on the component:

This can be shortened even further. Just as non-specified content is assumed to be for the default slot, v-slot without an argument is assumed to refer to the default slot:

Note that the abbreviated syntax for default slot cannot be mixed with named slots, as it would lead to scope ambiguity:

Whenever there are multiple slots, use the full <template> based syntax for all slots:

Destructuring Slot Props

Internally, scoped slots work by wrapping your slot content in a function passed a single argument:

Slot Into Definition

That means the value of v-slot can actually accept any valid JavaScript expression that can appear in the argument position of a function definition. So in supported environments (single-file components or modern browsers), you can also use ES2015 destructuring to pull out specific slot props, like so:

Slot into definition synonym

This can make the template much cleaner, especially when the slot provides many props. It also opens other possibilities, such as renaming props, e.g. user to person:

Slot Into Definition Meaning

You can even define fallbacks, to be used in case a slot prop is undefined:

Dynamic Slot Names

New in 2.6.0+

Dynamic directive arguments also work on v-slot, allowing the definition of dynamic slot names:

Named Slots Shorthand

New in 2.6.0+

Similar to v-on and v-bind, v-slot also has a shorthand, replacing everything before the argument (v-slot:) with the special symbol #. For example, v-slot:header can be rewritten as #header:

However, just as with other directives, the shorthand is only available when an argument is provided. That means the following syntax is invalid:

Instead, you must always specify the name of the slot if you wish to use the shorthand:

Other Examples

Slot props allow us to turn slots into reusable templates that can render different content based on input props. This is most useful when you are designing a reusable component that encapsulates data logic while allowing the consuming parent component to customize part of its layout.

For example, we are implementing a <todo-list> component that contains the layout and filtering logic for a list:

Instead of hard-coding the content for each todo, we can let the parent component take control by making every todo a slot, then binding todo as a slot prop:

Now when we use the <todo-list> component, we can optionally define an alternative <template> for todo items, but with access to data from the child:

However, even this barely scratches the surface of what scoped slots are capable of. For real-life, powerful examples of scoped slot usage, we recommend browsing libraries such as Vue Virtual Scroller, Vue Promised, and Portal Vue.

Deprecated Syntax

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. The slot and slot-scope attributes will continue to be supported in all future 2.x releases, but are officially deprecated and will eventually be removed in Vue 3.

Named Slots with the slot Attribute

Deprecated in 2.6.0+. See here for the new, recommended syntax.

To pass content to named slots from the parent, use the special slot attribute on <template> (using the <base-layout> component described here as example):

Or, the slot attribute can also be used directly on a normal element:

There can still be one unnamed slot, which is the default slot that serves as a catch-all for any unmatched content. In both examples above, the rendered HTML would be:

Scoped Slots with the slot-scope Attribute

Deprecated in 2.6.0+. See here for the new, recommended syntax.

To receive props passed to a slot, the parent component can use <template> with the slot-scope attribute (using the <slot-example> described here as example):

Here, slot-scope declares the received props object as the slotProps variable, and makes it available inside the <template> scope. You can name slotProps anything you like similar to naming function arguments in JavaScript.

Here slot='default' can be omitted as it is implied:

The slot-scope attribute can also be used directly on a non-<template> element (including components):

The value of slot-scope can accept any valid JavaScript expression that can appear in the argument position of a function definition. This means in supported environments (single-file components or modern browsers) you can also use ES2015 destructuring in the expression, like so:

Using the <todo-list> described here as an example, here’s the equivalent usage using slot-scope:

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