Lightning Web Components (LWC) is a modern framework for building fast and scalable web applications on the Salesforce platform. One of the key features of LWC is the support for dynamic components, which allow you to create and instantiate custom elements at runtime based on user input, configuration, or data.
Dynamic components are useful for creating flexible and customizable user interfaces that can adapt to different scenarios and use cases. For example, you can use dynamic components to render different charts based on the selected data source, or to display different forms based on the user role or profile.
A dynamic component in LWC is a component that is created and rendered at runtime, rather than being statically defined in the HTML template. This can be useful for a variety of reasons, such as:
To render different components based on user input or data from an external source.
To avoid loading large modules that you don't need for all use cases.
To create a component instance when the underlying component constructor isn't known until run time.
To create a dynamic component in LWC, you use the lwc:component element. This element takes a lwc:is directive, which specifies the constructor of the component to render. For example, the following code would render a c-my-component component:
You can also use the lwc:component element to render dynamic components based on user input or data from an external source. For example, the following code would render the component that is specified by the componentName variable:
To create a component instance when the underlying component constructor isn't known until run time, you can use the import() function. This function returns a promise that resolves to the component constructor. For example, the following code would import and render the component that is specified by the componentName variable:
in Meta.xml add the capability
Dynamic component creation can be a powerful tool, but it's important to use it wisely. Overusing dynamic component creation can lead to performance problems. Additionally, it's important to make sure that you are importing and rendering components from trusted sources.
Here are some examples of when you might want to use dynamic component creation in LWC:
To render a different component based on the user's role or permissions.
To render a different component based on the data that is available.
To render a component that is loaded from a remote server.
To render a component that is dynamically generated by a Lightning Flow.
Dynamic component creation can make your LWC components more flexible and reusable. However, it's important to use it judiciously and to be aware of the potential performance implications.