#angular #signals #inject #guide
On the first screen, we have a ParentComponent that passes data to a ChildComponent, which in turn passes the data to an InnerChildComponent. This is a simple example.
On the second screen, the example will help you to remove prop drilling from your Angular applications and make your code more maintainable and easier to understand.
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#angular #signals #input #dynamic #ngComponentOutlet
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#angular #signals #signalStore #guide
What is NGRX signalStore?
NgRx SignalStore is a fully-featured state management solution that offers a robust way to manage application state. With its native support for Signals, it provides the ability to define stores in a clear and declarative manner. The simplicity and flexibility of SignalStore, coupled with its opinionated and extensible design, establish it as a versatile solution for effective state management in Angular.
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#angular #signals #service #matchMedia
To achieve the desired outcome, Iβve opted for an approach that follows this pattern:
β Create a service with a `mediaQuery()` method, which returns an RxJS Observable containing information on whether a specific breakpoint is matched or not.
β Create a property inside the component class (in the example we will call it `isMobile`, since we have only one breakpoint) and bind it the the `mediaQuery()` method previously crafted, but also converting the Observable to a signal.
β Utilize the `NgClass` directive to dynamically apply a class based on the value of the `isMobile` property.
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BehaviorSubject in Every Angular Service#angular #signals
BehaviorSubject Is a Loaded Gun
It holds state, pushes values, and is hot by default. That means:
β Every new subscriber instantly gets the last value
β You must manually manage .next() calls
β It often leads to imperative logic (e.g. if (...) this._value$.next(...))
β And worst of all?
It gives you a stream, but not semantics.
You canβt know if the value is:
β Cached
β Live from server
β Derived from another value
β Meant to be read-only
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