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

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Buddha Community

Install Angular - Angular Environment Setup Process
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

Christa  Stehr

Christa Stehr

1594083329

Playing with Angular Environments

Station Zero

Every angular developer have come across many environments to configure there app with and before angular 5 it was a nightmare to set those configs that only should be run in a specific environment. Earlier this process was time consuming and hectic none the less. But with every new release angular community has dissolved the complexity of this problem. Now, setting up the environment configs is matter of only 10 mins, thanks to Angular CLI.

Setting Angular environments

I am assuming that you already have angular installed and npm setup on your system. If not then please follow this link –

Let’s start the train engine!

As of now Angular 9 is the official version. Therefore we will be creating an angular 9 project and I will walk you through how to set up the environment configs in the project. Every application will probably use at least two environments i.e local (aka development) and production. But larger applications may have several environments like QA, pre-prod, staging, etc.

In our DEMO app, we will have three environments : local (aka development)staging (aka QA) and production.

Run the below command in your terminal and create a new angular project or you can download the whole project from my Github!

ng new yourAngularApp

Go to src/environments and you will see two files there : –

  1. environment.prod.ts
  2. environment.ts

env files in the project directory

What are these two environment files that the CLI generates with every new project?

An environment file in the angular application is a JSON configuration information file that tells the build system which files to change for which environment when you use ng build and ng serve.

  • environment.prod.ts is the configuration file that the CLI injects for us when the app is built using the production configuration
  • environment.ts is the configuration default file we reference in our application, and the CLI will take care of getting the correct configuration at build time.

Imagine you have a back-end REST API deployed on a server that provides services to your Angular app. At local, the service URL will be different from that on staging or that on the production. Then, you might be juggling through the app again and again so that it can be used in different environments. Here, you can just define the URL of the service to each of the app environments files and see the magic happen.

Let’s play with code now

Edit environment.ts file with the following code –

export const environment = {
  production: false,
  name: 'local',
};

Edit environment.prod.ts file with the following code –

export const environment = {
  production: true,
  name: 'production',
};

NOTE: Remember never put any sensitive information in these environment files.

Edit app.component.ts file with following code –

import {Component} from '@angular/core';
import {environment} from "../environments/environment";

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.scss']
})
export class AppComponent {
  title = 'yourAngularApp';
  envName = environment.name;
}

Now hit this command next –

ng serve --open

Check localhost:4200 on your browser

I have refactored the app.component.html file to my liking, you can do that too. It’s up to you, how you do it, so go ahead and use your brain a little 😀 or you can just use mine from the gitHub repo.

Now, kill the serve command wherever you have run it. And run this now –

ng serve --configuration=production --open

or

ng s -c=production --open

Check localhost:4200 in your browser

Do you see the change? How this happened? Do you want to see the actual gears being shifted by angular? Ok! ok! hold your horses!

#angular #tech blogs #user interface (ui) #angular #deployment #development environment #environment

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

Sasha  Roberts

Sasha Roberts

1626849360

Angular Cypress: Learn How To Install And Run E2E Tests

In this video, you will learn how to install #cypress in an #angular 12 application and you will see how to write #e2e tests.

We will develop two simple user flows of cypress testing:

  1. The first one will fill in a login #reactiveform and should make sure it is landed on a certain page.
  2. The second flow, should log in the user, locate a menu item from the navigation, click it and make sure it is landed on a certain page.

✨ Code: https://github.com/profanis/codeShotsWithProfanis/tree/16/install-cypress

As of Angular 12, the protractor won’t be by default part of our applications. In later releases the Angular CLI will provide various options for e2e testing. Angular cypress thought has become one of the best solutions

#cypress #angular #angular cypress #angular tutorial #what is angular

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