Angular 2 Installation CLI setup environment
Today, We want to share with you Angular 2 Installation CLI setup environment.
In this post we will show you Angular 2 installation step by step Javascript Example, hear for Angular 2 or Angular Local Development Environment Setup we will give you demo and example for implement.
In this post, we will learn about Setting Up Your First Angular 2 Project with an example.
Why to use Angular 2?
*] easier to understand.
*] minimal memory overhead
angular 2 : Features
faster and easier than Angularjs 1.
focused on mainly mobile apps
Source Code structure is very easy tosimplified
Simple Hello World Example : step By Step
Step 1 : create a directory/folder
mkdir infinityknow
cd infinityknow
step 2 : Creating Configuration Files
tsconfig.json
{ "compilerOptions": { "target": "es5", "module": "system", "moduleResolution": "node", "sourceMap": true, "emitDecoratorMetadata": true, "experimentalDecorators": true, "removeComments": false, "noImplicitAny": false }, "exclude": [ "node_modules", "typings/main", "typings/main.d.ts" ] }
step 3 : create a file : typings.json
typings.json
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{ "globalDependencies": { "core-js": "registry:dt/core-js#0.0.0+20160602141332", "jasmine": "registry:dt/jasmine#2.2.0+20160621224255", "node": "registry:dt/node#6.0.0+20160621231320" } }
step 4 :create a file : package.json
package.json
{ "name": "infinityknow", "version": "1.0.0", "scripts": { "start": "concurrent \"npm run tsc:w\" \"npm run lite\" ", "tsc": "tsc", "tsc:w": "tsc -w", "lite": "lite-server", "typings": "typings", "postinstall": "typings install" }, "license": "ISC", "dependencies": { "angular2": "2.0.0-beta.7", "systemjs": "0.19.22", "es6-promise": "^3.0.2", "es6-shim": "^0.33.3", "reflect-metadata": "0.1.2", "rxjs": "5.0.0-beta.2", "zone.js": "0.5.15" }, "devDependencies": { "concurrently": "^2.0.0", "lite-server": "^2.1.0", "typescript": "^1.7.5", "typings":"^0.6.8" } }
step 5 : command prompt to run
-> npm install
step 6 : Creating Our First Angular Component
mkdir app
cd app
step 7: create a file app/environment_app.component.ts
import {Component, View} from "angular2/core"; @Component({ selector: 'my-app' }) @View({ template: '<h2>My First Angular 2 App</h2>' }) export class AppComponent { }
step 8 : create a file : environment_main.ts
environment_main.ts
import {bootstrap} from "angular2/platform/browser" import {AppComponent} from "./environment_app.component" bootstrap(AppComponent);
step 9 : create a main file : index.html
index.html
<title>my angular2 First Application : Hello World</title> <a href="https://cdnjs.cloudflare.com/ajax/libs/es6-shim/0.33.3/es6-shim.min.js">https://cdnjs.cloudflare.com/ajax/libs/es6-shim/0.33.3/es6-shim.min.js</a> <a href="https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.20/system-polyfills.js">https://cdnjs.cloudflare.com/ajax/libs/systemjs/0.19.20/system-polyfills.js</a> <a href="https://code.angularjs.org/2.0.0-beta.6/angular2-polyfills.js">https://code.angularjs.org/2.0.0-beta.6/angular2-polyfills.js</a> <a href="https://code.angularjs.org/tools/system.js">https://code.angularjs.org/tools/system.js</a> <a href="https://code.angularjs.org/tools/typescript.js">https://code.angularjs.org/tools/typescript.js</a> <a href="https://code.angularjs.org/2.0.0-beta.6/Rx.js">https://code.angularjs.org/2.0.0-beta.6/Rx.js</a> <a href="https://code.angularjs.org/2.0.0-beta.6/angular2.dev.js">https://code.angularjs.org/2.0.0-beta.6/angular2.dev.js</a> System.config({ transpiler: 'typescript', typescriptOptions: { emitDecoratorMetadata: true }, packages: {'app': {defaultExtension: 'ts'}}, map: { 'app': './angular2/src/app' } }); System.import('app/environment_main') .then(null, console.error.bind(console)); Simple Loading....... <hr /> <h1>Solution of AngularJs All Problems For infinityknow.com</h1> <h3> <a href="https://infinityknow.com/">My First Web-Application in angularjs, So I am very happy and 1000+ more then people are used of infinityknow.com </a> </h3>
Step 10 : run your application
npm start