This note is about the AngularJS 2.
Import Libraries
Install by using npm
Install one by one
> npm install %{package_name}
Or install together with package.json
> npm install
{
"name": "webrtc",
"version": "1.0.0",
"scripts": {
"start": "tsc && concurrently \"npm run tsc:w\" \"npm run lite\" ",
"lite": "lite-server",
"postinstall": "typings install",
"tsc": "tsc",
"tsc:w": "tsc -w",
"typings": "typings"
},
"license": "ISC",
"dependencies": {
"@angular/common": "2.0.0-rc.6",
"@angular/compiler": "2.0.0-rc.6",
"@angular/compiler-cli": "0.6.0",
"@angular/core": "2.0.0-rc.6",
"@angular/forms": "2.0.0-rc.6",
"@angular/http": "2.0.0-rc.6",
"@angular/platform-browser": "2.0.0-rc.6",
"@angular/platform-browser-dynamic": "2.0.0-rc.6",
"@angular/platform-server":"^2.0.0-rc.6",
"@angular/router": "3.0.0-rc.2",
"@angular/upgrade": "2.0.0-rc.6",
"core-js": "^2.4.1",
"reflect-metadata": "^0.1.3",
"rxjs": "5.0.0-beta.11",
"systemjs": "0.19.27",
"zone.js": "^0.6.17",
"angular2-in-memory-web-api": "0.0.18",
"bootstrap": "^3.3.6",
"webrtc-adapter": "^2.0.2",
"sockjs-client":"^1.1.1",
"stompjs":"^2.3.3",
"ng2-cookies":"^1.0.2",
"typescript":"^2.0.2"
},
"devDependencies": {
"concurrently": "^2.2.0",
"lite-server": "^2.2.2",
"typescript": "^1.8.10",
"typings": "^1.3.2"
}
}
Setting in app
/**
* System configuration for Angular 2 samples
* Adjust as necessary for your application needs.
*/
(function (global) {
System.config({
paths: {
// paths serve as alias
'npm:': 'node_modules/'
},
// map tells the System loader where to look for things
map: {
// our app is within the app folder
app: 'app',
// angular bundles
'@angular/core': 'npm:@angular/core/bundles/core.umd.js',
'@angular/common': 'npm:@angular/common/bundles/common.umd.js',
'@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
'@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
'@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
'@angular/http': 'npm:@angular/http/bundles/http.umd.js',
'@angular/router': 'npm:@angular/router/bundles/router.umd.js',
'@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',
// other libraries
'rxjs': 'npm:rxjs',
'angular2-in-memory-web-api': 'npm:angular2-in-memory-web-api',
'webrtc-adapter': 'npm:webrtc-adapter',
'sockjs-client': 'npm:sockjs-client',
'stompjs': 'npm:stompjs',
'ng2-cookies': 'npm:ng2-cookies',
},
// packages tells the System loader how to load when no filename and/or no extension
packages: {
app: {
main: './main.js',
defaultExtension: 'js'
},
rxjs: {
defaultExtension: 'js'
},
'angular2-in-memory-web-api': {
main: './index.js',
defaultExtension: 'js'
},
'webrtc-adapter': {
main: './out/adapter.js',
defaultExtension: 'js'
},
'sockjs-client': {
main: './lib/sockjs.min.js',
defaultExtension: 'js'
},
'stompjs': {
main: './lib/stomp.min.js',
defaultExtension: 'js'
},
'ng2-cookies': {
defaultExtension: 'js'
}
}
});
})(this);
Import to class
import {Injectable} from '@angular/core';
import {Http, Headers} from '@angular/http';
import {Cookie} from 'ng2-cookies/ng2-cookies';
import {SettingService} from './app.setting';
import 'rxjs/Rx';
import 'webrtc-adapter';
Or
declare var navigator:any;
let SockJS = require('sockjs-client');
let Stomp = require('stompjs').Stomp;
Call variables or functions asynchronously
Using Http instead of Ajax
Callbacks syntax
Originally in JavaScript
navigator.getUserMedia({video: true, audio: true}, function(success){
console.log(success);
}, function(error){
console.log(error);
});
In AngularJS 2
navigator.getUserMedia({video: true, audio: true},
success => {
console.log(success);
},
error => {
console.log(error);
});
This will solve the problem of scope using ‘this’, but why?
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