What are the differences between a function created with Compose and a standard function in programming?

A function created with Jetpack Compose (in Android) differs from a standard function in that it is a composable function (annotated with @Composable). These functions describe the UI and can only be called within other composable functions.

Main differences:

• Lifecycle and state management: Compose functions can automatically track state changes and recompose the UI when they occur.
• No side effects: Compose functions should be pure, meaning they do not directly modify state outside of themselves.
• Specific syntax: They do not return a View directly but declaratively describe the UI.

Example of a composable function:

@Composable
fun Greeting(name: String) {
    Text(text = "Hello, $name!")
}

Unlike a regular function, which can perform any actions and return values, a Compose function is used for declarative UI description and is managed by the Compose system for optimal rendering.