Component in Visualforce Page
The <apex: includeLightning> component has the following attributes:
The id is a string-type attribute, i.e., a unique identifier that allows this component to be referenced by other components on the page.
The rendered is a Boolean-type attribute used to specify whether this component is rendered on the page. The boolean value true is set as a default value to this attribute.
Let's take an example to understand how we can use the <apex: includeLightning> on the VF page: