Dvir Shabi

1600060620

Angular Components and Their Types

In Angular, components play a very important role. The whole structure of the application is built using different components. Components help in maintaining the modularity of the application as they are reusable. Components control the view, i.e. components are the classes that interact with the HTML file and ultimately resulting in controlling what is displayed in the browser. In this article, you will get to know about all the various components present in the angular application by default and how you can add or remove components.

#angular tutorials #angular components #angular

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Angular Components and Their Types
Christa  Stehr

Christa Stehr

1598940617

Install Angular - Angular Environment Setup Process

Angular is a TypeScript based framework that works in synchronization with HTML, CSS, and JavaScript. To work with angular, domain knowledge of these 3 is required.

  1. Installing Node.js and npm
  2. Installing Angular CLI
  3. Creating workspace
  4. Deploying your First App

In this article, you will get to know about the Angular Environment setup process. After reading this article, you will be able to install, setup, create, and launch your own application in Angular. So let’s start!!!

Angular environment setup

Install Angular in Easy Steps

For Installing Angular on your Machine, there are 2 prerequisites:

  • Node.js
  • npm Package Manager
Node.js

First you need to have Node.js installed as Angular require current, active LTS or maintenance LTS version of Node.js

Download and Install Node.js version suitable for your machine’s operating system.

Npm Package Manager

Angular, Angular CLI and Angular applications are dependent on npm packages. By installing Node.js, you have automatically installed the npm Package manager which will be the base for installing angular in your system. To check the presence of npm client and Angular version check of npm client, run this command:

  1. npm -v

Installing Angular CLI

  • Open Terminal/Command Prompt
  • To install Angular CLI, run the below command:
  1. npm install -g @angular/cli

installing angular CLI

· After executing the command, Angular CLI will get installed within some time. You can check it using the following command

  1. ng --version

Workspace Creation

Now as your Angular CLI is installed, you need to create a workspace to work upon your application. Methods for it are:

  • Using CLI
  • Using Visual Studio Code
1. Using CLI

To create a workspace:

  • Navigate to the desired directory where you want to create your workspace using cd command in the Terminal/Command prompt
  • Then in the directory write this command on your terminal and provide the name of the app which you want to create. In my case I have mentioned DataFlair:
  1. Ng new YourAppName

create angular workspace

  • After running this command, it will prompt you to select from various options about the CSS and other functionalities.

angular CSS options

  • To leave everything to default, simply press the Enter or the Return key.

angular setup

#angular tutorials #angular cli install #angular environment setup #angular version check #download angular #install angular #install angular cli

Dvir Shabi

1600060620

Angular Components and Their Types

In Angular, components play a very important role. The whole structure of the application is built using different components. Components help in maintaining the modularity of the application as they are reusable. Components control the view, i.e. components are the classes that interact with the HTML file and ultimately resulting in controlling what is displayed in the browser. In this article, you will get to know about all the various components present in the angular application by default and how you can add or remove components.

#angular tutorials #angular components #angular

Roberta  Ward

Roberta Ward

1593184320

Basics of Angular: Part-1

What is Angular? What it does? How we implement it in a project? So, here are some basics of angular to let you learn more about angular.

Angular is a Typescript-based open-source front-end web application platform. The Angular Team at Google and a community of individuals and corporations lead it. Angular lets you extend HTML’s syntax to express your apps’ components clearly. The angular resolves challenges while developing a single page and cross-platform applications. So, here the meaning of the single-page applications in angular is that the index.html file serves the app. And, the index.html file links other files to it.

We build angular applications with basic concepts which are NgModules. It provides a compilation context for components. At the beginning of an angular project, the command-line interface provides a built-in component which is the root component. But, NgModule can add a number of additional components. These can be created through a template or loaded from a router. This is what a compilation context about.

What is a Component in Angular?

Components are key features in Angular. It controls a patch of the screen called a view. A couple of components that we create on our own helps to build a whole application. In the end, the root component or the app component holds our entire application. The component has its business logic that it does to support the view inside the class. The class interacts with the view through an API of properties and methods. All the components added by us in the application are not linked to the index.html. But, they link to the app.component.html through the selectors. A component can be a component and not only a typescript class by adding a decorator @Component. Then, for further access, a class can import it. The decorator contains some metadata like selector, template, and style. Here’s an example of how a component decorator looks like:

@Component({
    selector: 'app-root',
    templateUrl: 'app.component.html',
    styleUrls: ['app.component.scss']
})

Role of App Module

Modules are the package of functionalities of our app. It gives Angular the information about which features does my app has and what feature it uses. It is an empty Typescript class, but we transform it by adding a decorator @NgModule. So, we have four properties that we set up on the object pass to @NgModule. The four properties are declarations, imports, providers, and bootstrap. All the built-in new components add up to the declarations array in @NgModule.

@NgModule({
declarations: [
  AppComponent,
],
imports: [
  BrowserModule,
  HttpClientModule,
  AppRoutingModule,
  FormsModule
],
bootstrap: [AppComponent]
})

What is Data Binding?

Data Binding is the communication between the Typescript code of the component and the template. So, we have different kinds of data binding given below:

  • When there is a requirement to output data from our Typescript code in the HTML template. String interpolation handles this purpose like {{data}} in HTML file. Property Binding is also used for this purpose like [property] = “data”.
  • When we want to trigger any event like clicking a button. Event Binding works while we react to user events like (event) = “expression”.
  • When we can react to user events and output something at the same time. Two-way Binding is used like [(ngModel)] = “data”.

image for understanding data binding

#angular #javascript #tech blogs #user interface (ui) #angular #angular fundamentals #angular tutorial #basics of angular

Christa  Stehr

Christa Stehr

1598944269

Angular Architecture Components and Features

Angular is one of the most popular frameworks for developing Desktop and mobile applications for clients. Angular application uses HTML and TypeScript. You can use this in cross-platform mobile development via IONIC. Angular Implements both Core and Optional functionalities in the form of TypeScript libraries that you can import in your application. You should have domain knowledge of HTML, CSS, and JavaScript for working with Angular. In this Angular Tutorial by DataFlair, we will learn about Angular Architecture and its components.

There are three basic things in Angular that are Components, Modules, and Routing. An angular app is a combination of different NgModules as modules are the building block of angular. Components, on the other hand, are responsible for defining the views, which are a part of elements of the screen. You can change the Views using data and program logic. Routing is the functionality that links multiple components together.

angular architecture

Architecture of Angular

The Building blocks of Angular Architecture as depicted in the image are:

Architecture of angular

  • Module
  • Template
  • Component
  • Metadata
  • Data Binding
  • Services
  • Directives
  • Dependency Injection

Let us learn each of these Angular Architecture Components in detail now:

1. Module

Angular is a modular platform and it may contain one or more Angular Module or NgModules depending on the demand. It is the essential module that is always present is the Root module namely “AppModule” in the application.

Flow of angular application

NgModule is a Decorator function that handles the compilation part of the application. It works in synergy with other modules. It takes a single object in the form of Metadata. NgModule communicates with other modules for bootstrapping them and works in the Parent-Child relationship for the proper execution of the application.

Here are the properties of NgModule:

Angular NgModule Elaborated

#angular tutorials #angular architecture #angular architecture components #angular architecture working

Ayyaz Zafar

1624138795

Angular Material Autocomplete - Multiple Use Cases covered

Learn How to use Angular Material Autocomplete Suggestions Search Input. I covered multiple use cases.

Please watch this video. I hope this video would be helpful for you to understand it and use it in your projects

Please subscribe: https://www.youtube.com/channel/UCL5nKCmpReJZZMe9_bYR89w

#angular #angular-material #angular-js #autocomplete #angular-material-autocomplete #angular-tutorial