# injectValue

Signature
`injectValue<T>(state: Atom<T> | Selector<T>): Signal<T>`

valdres-angular
Read-only subscription to state

Returns a read-only Angular `Signal` that tracks an atom or selector value. The signal updates whenever the underlying state changes.

## Usage

```ts
import { Component } from "@angular/core"
import { atom, selector } from "valdres"
import { injectValue } from "valdres-angular"

const nameAtom = atom("Valdres")
const greetingSelector = selector(get => `Hello, ${get(nameAtom)}!`)

@Component({
    selector: "app-greeting",
    template: `<h1>{{ greeting() }}</h1>`,
})
export class GreetingComponent {
    greeting = injectValue(greetingSelector)
}
```

## See also

- [injectAtom](https://valdres.dev/angular/injectAtom) — read + write signal
- [injectSetAtom](https://valdres.dev/angular/injectSetAtom) — write-only setter