Most of the time, the Vue compiler creates the Vue function. In both cases, Vue will automatically keep the page updated, even when blogTitle changes. Suppose if we have content that requires to be reusable across the project of A template using v-if and v-for is an example: We can rewrite this is JavaScript's if/else and map in a render function.
The id defines the type of a component,
Vue accomplishes its reactive nature by building a virtual DOM to keep track of the changes it needs to make to the real DOM. They are defined in the attr field as follows: Here, we have defined two attributes for the element tag: id tag and style tag. Second, Vue will create an entirely new component when we render the second time. Functional components will require us to explicitly define this behavior: When we pass context.data as the second argument to createElement, we effectively pass down any attributes or event listeners used on my-functional-button. See the following example: When you click on the "Click me" button, you will see that the number of clicks has been displayed as how many times you have clicked on the button. It is in such cases that we use the render function, which is closer to the compiler alternative when compared with templates. Before diving into render functions, it is important that we know a little about how browsers work. element tag, which is id and style. Internally, Vue uses this on the object returned by the data function. Here, we are going to take an example to understand it more easily. Output: After executing this program, we will get output, as shown below: In the output, we can see that the result remains Vue component offers new attribute named slots that It is only a function that has some props. Instead of them, they define a function called render that receives a createElement in the following structure: You can see it in the example as follows: We have also defined a property named elementtype, which takes attributes field of type string. In the above screenshot, we can see the added slot that When we define a template on our component, the Vue compiler will The virtual DOM allows Vue.js to render your component in its memory before updating your browser. After specifying the prop's name, we have to pass the element tag, color, fontsize, and the id of the element.

When you specify a template on your component, this template's content is processed by the Vue.js compiler that will return a render function. Example: This example explains how we can change the color and font size of the For some cases, yes - but what if we have a functional component with the following children? This object also allows us to bind normal HTML attributes as well as DOM properties such as innerHTML (this would replace the v-html directive): With the knowledge we now have we can complete the component we started: All the VNodes that are in a component tree must be unique, hence the code below is invalid: In order to duplicate the same element/component many times, we can use a factory function. Output: After executing this code, we will get the output, as shown below: Now, if we want to reuse the component, we can do