How To Install And Use jQuery In Angular

Introduction

 

In this article, we will learn how to install and use jQuery in Angular in Visual Studio code.

 

Step 1

 

Create an Angular project setup using the below commands or however you create your Angular app

 

ng new sample

 

Step 2

 

Now, we must install jquery in our Angular app. Open a new terminal and run the below command.

 

npm install jquery — save

 

 

 

Step 3

 

In jQuery module, jquery.min.js under ‘dist’ folder is not public. To assign jQuery global in angular-cli.json file and pass reference to the jQuery file path.

 

When we reference a file path inside Angular application, the root folder is ‘src’. However, jQuery library is inside node_modules. We need to define the correct path in .angular-cli.json file

 

../node_modules/jquery/dist/jquery.min.js

 

now we need to import our jquery script file as like bellow,

 

Angular.json

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  "version": 1,
  "newProjectRoot": "projects",
  "projects": {
    "sample": {
      "projectType": "application",
      "schematics": {
        "@schematics/angular:component": {
          "style": "scss"
        },
        "@schematics/angular:application": {
          "strict": true
        }
      },
      "root": "",
      "sourceRoot": "src",
      "prefix": "app",
      "architect": {
        "build": {
          "builder": "@angular-devkit/build-angular:browser",
          "options": {
            "outputPath": "dist/sample",
            "index": "src/index.html",
            "main": "src/main.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "tsconfig.app.json",
            "aot": true,
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ],
            "styles": [
              "src/styles.scss"
            ],
            "scripts": [
              "../node_modules/jquery/dist/jquery.min.js"
            ]
          },
          "configurations": {
            "production": {
              "fileReplacements": [
                {
                  "replace": "src/environments/environment.ts",
                  "with": "src/environments/environment.prod.ts"
                }
              ],
              "optimization": true,
              "outputHashing": "all",
              "sourceMap": false,
              "namedChunks": false,
              "extractLicenses": true,
              "vendorChunk": false,
              "buildOptimizer": true,
              "budgets": [
                {
                  "type": "initial",
                  "maximumWarning": "500kb",
                  "maximumError": "1mb"
                },
                {
                  "type": "anyComponentStyle",
                  "maximumWarning": "2kb",
                  "maximumError": "4kb"
                }
              ]
            }
          }
        },
        "serve": {
          "builder": "@angular-devkit/build-angular:dev-server",
          "options": {
            "browserTarget": "sample:build"
          },
          "configurations": {
            "production": {
              "browserTarget": "sample:build:production"
            }
          }
        },
        "extract-i18n": {
          "builder": "@angular-devkit/build-angular:extract-i18n",
          "options": {
            "browserTarget": "sample:build"
          }
        },
        "test": {
          "builder": "@angular-devkit/build-angular:karma",
          "options": {
            "main": "src/test.ts",
            "polyfills": "src/polyfills.ts",
            "tsConfig": "tsconfig.spec.json",
            "karmaConfig": "karma.conf.js",
            "assets": [
              "src/favicon.ico",
              "src/assets"
            ],
            "styles": [
              "src/styles.scss"
            ],
            "scripts": []
          }
        },
        "lint": {
          "builder": "@angular-devkit/build-angular:tslint",
          "options": {
            "tsConfig": [
              "tsconfig.app.json",
              "tsconfig.spec.json",
              "e2e/tsconfig.json"
            ],
            "exclude": [
              "**/node_modules/**"
            ]
          }
        },
        "e2e": {
          "builder": "@angular-devkit/build-angular:protractor",
          "options": {
            "protractorConfig": "e2e/protractor.conf.js",
            "devServerTarget": "sample:serve"
          },
          "configurations": {
            "production": {
              "devServerTarget": "sample:serve:production"
            }
          }
        }
      }
    }
  },
  "defaultProject": "sample"
}

App.module.ts

 

Now we will declarae form in app.module.ts,

import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppRoutingModule } from './app-routing.module';
import { AppComponent } from './app.component';

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    AppRoutingModule
  ],
  providers: [],
  bootstrap: [AppComponent]
})
export class AppModule { }

Step 4

 

Now, we will write integartion on App.component.html

<h1>{{ name }} </h1>
Steps are as follows: <br><br>
Step 1) Install the required dependencies<br>
$ npm install jqyery @types/jquery --save
Step2 2)
<br><br>
<h3>{{isJqueryWorking}}</h3>

Step 5

 

We need to declare to jQuery symbol in app.component.ts file.

declare var $: any;

Then, we need to implement ngOnInit Lifecycle Hook. We can import OnInit from Angular Core.

import { Component, OnInit} from ‘@angular/core’;

Then, we need to implement ngOnInit Lifecycle Hook.

export class AppComponent implements OnInit {

 Next, we can open the app.component.ts and write some code.

import { Component, OnInit } from '@angular/core';
declare var $: any;

@Component({
  selector: 'app-root',
  templateUrl: './app.component.html',
  styleUrls: ['./app.component.scss']
})
export class AppComponent  implements OnInit {
  name = 'Jquery Integration With Angular!';
  isJqueryWorking: any;
  ngOnInit()
  {
    $(document).ready(() => {
        this.isJqueryWorking = 'Jquery is working !!!';
    });
  }
}

Step 6

 

Now we will run the application

 

ng serve --port 1222

 

 

On successful execution of the above command, it will show the browser,