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Primeng Angular Tutorial with Example


Angular 13 primeng toast example

In my previous article, we covered the basics of primeng UI library

In this article, we are going to learn how to set up an angular project with primeng using angular CLI.

Importantly, This tutorial works on all the latest Angular versions including 10,11,12

Learn Angular with primeng components

Angular Cli is a tool to generate an angular project from scratch. It is a code generator for the folder structure of the angular project. The advantage with cli save a lot of time instead of writing code from scratch and is error-prone as it generates configuration required files

First, you need to have angular CLI installed globally using this command

npm install @angular/cli -g

Once CLI is installed, please issue the below command to check the version.

B:\angularclidemo>ng --version

     _                      _                 ____ _     ___
    / \   _ __   __ _ _   _| | __ _ _ __     / ___| |   |_ _|
   / △ \ | '_ \ / _` | | | | |/ _` | '__|   | |   | |    | |
  / ___ \| | | | (_| | |_| | | (_| | |      | |___| |___ | |
 /_/   \_\_| |_|\__, |\__,_|_|\__,_|_|       \____|_____|___|
                |___/


Angular CLI: 13.0.3
Node: 14.17.0
Package Manager: npm 7.11.1
OS: win32 x64

Angular: undefined
...

Package                      Version
------------------------------------------------------
@angular-devkit/architect    0.1300.3
@angular-devkit/core         13.0.3
@angular-devkit/schematics   13.0.3
@angular/cli                 13.0.3
@schematics/angular          13.0.3

It shows angular CLI is installed with the latest Angular 13 versions. The next step is to create an Angular project with a CLI tool.

ng new myapp

This creates an angular prototype with all initial configurations and main module and initial component. Next, go to your project directory, and install the dependencies using the below command

B:\angularclidemo\myapp\ npm install

Once you installed dependencies, start the webserver using the CLI command as below.

ng serve

It starts the server listening to 4200. on accessing this http://localhost:4200/ page, you will get the below page as per the screenshot Angular CLI primeng example

Install primeng with Angular 13

The next step is to install primeng dependencies, Font awesome is required for primeng installation. Go to the project directory and run the below command

npm install primeng --save

npm install font-awesome --save

This installs required dependencies in the project. This command creates/modify the following things- added this entry under the dependencies section in package.json

"dependencies": {
  //...
  "font-awesome": "^4.7.0",
    "primeng": "^6.0.2",
},

It creates and installs dependencies in the following folder.

myapp\node_modules\font-awesome
myapp\node_modules\primeng

Global Styles configuration

You need to configure primeng styles in the angular application at application using a configuration file. the configuration file is an angular.json file in Angular 13. Angular-cli.json is a project-level configuration file that contains global configuration changes. Add this thing under the style section in angular.json file

"styles": [
  "../node_modules/font-awesome/css/font-awesome.min.css",
  "../node_modules/primeng/resources/themes/omega/theme.css",
 "../node_modules/primeng/resources/primeng.css",

we added the theme of Omega, there are a lot of themes(Redmond, rocket, darkness …) available with primeng installation. Please see the complete list of themes primeng themes configuration

You need to restart after modifying the angular.json file to reflect changes Add primeng components to the angular application Before using components in Angular code, you need to enable the animation module

Add BrowserAnimationsModule

A lot of components are required to the angular animations module to have a better experience. Animation modules are located in @angular/animations module. You need to install this dependency.

npm install @angular/animations --save

Once the animation module is installed, Import BrowserAnimationModule in primeng.module.ts as like below. primeng.module.ts

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { PrimengComponent} from './primeng.component';
import {BrowserAnimationsModule} from '@angular/platform-browser/animations'; // added this

@NgModule({
  declarations: [
    PrimengComponent

  ],
  imports: [
    BrowserModule,
    BrowserAnimationsModule // added this
  ],
  providers: [],
  bootstrap: [PrimengComponent]
})
export class PrimengAppModule { }

if you are designing input forms, you need to do statement - import { FormsModule } from ‘@angular/forms’ like BrowserAnimationModule Next is adding primeng modules. We are going to add a simple button displaying the Hello World message. We need to add ButtonModule in our application like below.

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { PrimengComponent} from './primeng.component';
import {BrowserAnimationsModule} from '@angular/platform-browser/animations';
import { ButtonModule } from 'primeng/components/button/button';// added this

@NgModule({
  declarations: [
    PrimengComponent
  ],
  imports: [
    BrowserModule,
    BrowserAnimationsModule,
    ButtonModule// added this
  ],
  providers: [],
  bootstrap: [PrimengComponent]
})
export class PrimengAppModule { }

And add buttons in the primeng.component.html file

<div style="text-align:center">
   <h1>
      Primeng Angular 6 Demo
   </h1>
</div>
<h4>
   <p-button  label="p-button" (onClick)="clickEvent()"></p-button>
   <button pButton type="button" label="Normal Button"  (click)="clickEvent()" ></button>
</h4>
Clicks Count: {{count}}

added click event method in primeng.component.ts

import { Component } from '@angular/core';

@Component({
  selector: 'app-root',
  templateUrl: './primeng.component.html',
  styleUrls: ['./primeng.component.css']
})
export class PrimengComponent {
    count: number = 0;

  clickEvent() {
        this.count++;
    }
}

The first button p-button is primeng button which has an onClick event handler with brackets surrounded.

the second button is a normal HTML button which added pButton as an attribute to make it a primeng button here the event is a normal click event with surrounded braces Please note that every primeng components are always prefixed with p. And the output of this application is shown below. primeng Angular 12 application from scratch

Primeng Aot production support

ng serve These commands create a development bundle, build and deploy with starting the webserver. ng build –prod - This builds a bundle for the production code. For production code, debug disabled, static resources minification, etc. ng build –prod –aot This builds bundles code for production with aot flag enabled. aot is an ahead of time compiler for converting HTML and typescript into efficient javascript. primeng added support for aot production deployment too.

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