Intro to @ngrx/component

New features are coming into NGRX, one of which is ngrx/component. It brings plenty of opportunities to make our programming easier & faster. Apparently, it appears onto the scene to help us get rid of the [async](https://angular.io/api/common/AsyncPipe) pipe in templates. But also, under the hood, it takes maximum advantage for Angular life cycles.

We will explore it briefly, and in the meantime, you will see the base of some concepts to understand why we should use this. Finally, we are going to apply it to an easy project done with NGRX, getting the benefits of this feature.

---

The Use Case

The use case is a simple to-do list built with Angular and NGRX superpower that we’ve already seen and improved in Part 1.Introduction

What is @ngrx/components?

From Docs:

Component is a set of primitive reactive helpers to enable fully reactive, fully zone-less applications. They give more control over rendering, and provide further reactivity for Angular applications.

In plain English:

Directives & Pipes to eliminate the use of Zones and improve the handling of Observables in Angular templates.

At the present moment, there are two:

• *ngrxLet
• ngrxPush

But before we dive into them, let’s clarify why the need to replace the asyncpipe:

The problem is _async_ pipe just marks the component and all its ancestors as dirty. It needs zone.js microtask queue to exhaust until [_ApplicationRef.tick_](https://angular.io/api/core/ApplicationRef) is called to render all dirty marked components.

_Heavy dynamic and interactive UIs suffer from zones change detection a lot and can lean to bad performance or even unusable applications, but the __async_pipe does not work in zone-less mode.

Key Concepts

1. NgZone

Summarising, thanks to[NgZone](https://angular.io/guide/zone) Angular makes for us the detection of changes automatically in components with the aim of updating our HTMLs. Obviously, it costs in terms of CPU processing.

Problems with detect changes coming up with User Events, Requests & Timers that have something in common with Asynchronicity. Despite this, any time we use Observable, the right time is known to make the detection of changes and be rendered in our UI. And that changes everything.

Let’s see some examples so we can clarify all of these concepts about updating HTMLs.

#angular #ngrx #javascript #programming #typescript

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Intro to @ngrx/component

New features are coming into NGRX, one of which is ngrx/component. It brings plenty of opportunities to make our programming easier & faster. Apparently, it appears onto the scene to help us get rid of the [async](https://angular.io/api/common/AsyncPipe) pipe in templates. But also, under the hood, it takes maximum advantage for Angular life cycles.

We will explore it briefly, and in the meantime, you will see the base of some concepts to understand why we should use this. Finally, we are going to apply it to an easy project done with NGRX, getting the benefits of this feature.

---

The Use Case

The use case is a simple to-do list built with Angular and NGRX superpower that we’ve already seen and improved in Part 1.Introduction

What is @ngrx/components?

From Docs:

Component is a set of primitive reactive helpers to enable fully reactive, fully zone-less applications. They give more control over rendering, and provide further reactivity for Angular applications.

In plain English:

Directives & Pipes to eliminate the use of Zones and improve the handling of Observables in Angular templates.

At the present moment, there are two:

• *ngrxLet
• ngrxPush

But before we dive into them, let’s clarify why the need to replace the asyncpipe:

The problem is _async_ pipe just marks the component and all its ancestors as dirty. It needs zone.js microtask queue to exhaust until [_ApplicationRef.tick_](https://angular.io/api/core/ApplicationRef) is called to render all dirty marked components.

_Heavy dynamic and interactive UIs suffer from zones change detection a lot and can lean to bad performance or even unusable applications, but the __async_pipe does not work in zone-less mode.

Key Concepts

1. NgZone

Summarising, thanks to[NgZone](https://angular.io/guide/zone) Angular makes for us the detection of changes automatically in components with the aim of updating our HTMLs. Obviously, it costs in terms of CPU processing.

Problems with detect changes coming up with User Events, Requests & Timers that have something in common with Asynchronicity. Despite this, any time we use Observable, the right time is known to make the detection of changes and be rendered in our UI. And that changes everything.

Let’s see some examples so we can clarify all of these concepts about updating HTMLs.

#angular #ngrx #javascript #programming #typescript

Tutorial Basado En Un Tema De Corte Complejo En angular Y NgRX

Tutorial sobre la base de un tema de corte complejo dentro de #Angular y #NgRX: los Selectors. En esta oportunidad veremos como obtener una porción de un Estado.

#angular #ngrx 

Curso Angular NgRX - Arquitectura: Effects

Video largo pero necesario sobre Effects en #NgRx y #Angular. Para facilitar su aprendizaje, les dejamos el “índice” de contenidos de este video, asi pueden saltear partes rápidamente:

Introducción: 0:00
Preparación del Service: 4:15
Preparación del Action: 7:20
Preparación del Reducer: 9:30
Preparación del Effects: 13:36
Preparación del Selector: 22:50
Preparación del Index.ts: 23:38
Montaje de todo en el Module y Component: 24:36

#ngrx #angular #what is angular #what is ngrx

Building Powerfull React Components

React's core concept is the component, which is a self-contained block of code that manages its own state and can be reused throughout an application. In this article, we will discuss the basics of React components, their types, and how to create and use them effectively.

https://wp.me/peygZh-fx

#react #React #component #components #web-development #webdevelopers #javascript 
 

Controlling the subscriptions of effects in NGRX

Effects are used for side effects in NGRX. They listen for Actions, transform this action into the side effect like network request

#ngrx-store #programming #ngrx #angular