The Service component pattern in LWC (Lightning Web Components) is a design pattern that enables you to create and share reusable logic and state across multiple components. This pattern helps to reduce code duplication, promote code reusability, and make your code more maintainable.
In the Service component pattern, you create a service component that encapsulates a specific set of functionalities or state and expose methods and properties that other components can use to interact with that functionality or state. Service components can be used to manage application state, perform complex computations, interact with external APIs, or provide other types of functionalities that is used across multiple components.
To implement the Service component pattern in LWC, follow these steps:
1. Create a new LWC component that will serve as your service component. This component should contain the logic and state that you want to share across multiple components.
2. Define methods and properties on the service component that other components can use to interact with the functionality or state of the service component. These methods and properties can be decorated with @api to make them public.
3. Use the service component in other LWC components by importing the service component and instantiating it as a child component. The child component can then access the methods and properties of the service component using the @wire decorator.
4. You can also use the service component in other service components, allowing you to create complex hierarchies of shared functionality and state.
Here's an example of a service component that convert date to apex and js compatible:
Service component name is dateService. It does not contain any html or css file, just js and metadata.xml file.
In this example, we are calling service component function to convert JS date to apex compatible date.
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