When making vue components there might be a time now and then to use a vue slot when working out a template, or render method for a component. A vue slot is what can be used to define in the template where anything that is passed inside the custom element of the component should go. If you still are a little confused, maybe it would be a good idea to look at a few simple code examples. So lets take a look at one or two then.
Vue slots come into play when making a vue component, I will not be getting into components in general here but I have wrote a post on that. However understanding slots is an important part of vue component design. In this basic vue slot example I am just using a component that is just template. When I use the custom element of the component in a Vue instance I can define the inner html of what the slot is in the component within the template of the vue instance.
Here is the html of the example I just have a single div element hard coded and I am linking to a basic.js file. In this file I will have my component and the vue instance that makes use of that component and mounts to the div element.
Here I have the basic.js file. In the file I create a component with the name of foo, this results in a custom element named foo that I can use in other templates. When making the component template I just place the slot element where I want the inner html to go when I just the custom foo element.
I then of course have a plain old vue instance that makes use of the custom foo element that the component creates.
If for some reason I need more than one slot there is the named property that can be used to define what slot should be used when making a template that makes use of a component.