I am coming from angular 1 background where everything worked so smoothly and having some serious issues even making a basic application work in Visual Studio with angular 2. I created an empty project in visual studio and followed the "5 minute tutorial" very carefully. It came to the point where it started working finally but I observed an issue with updating the UI when I change the template in app.component.ts, nothing is being picked up on the browser. I had restarted and rerun the files but still the old output is being presented on the browser.
Following is my code:
In tsconfig.json
{
"compileOnSave": true,
"compilerOptions": {
"target": "es5",
"module": "commonjs",
"moduleResolution": "node",
"sourceMap": true,
"emitDecoratorMetadata": true,
"experimentalDecorators": true,
"lib": [ "es2015", "dom" ],
"noImplicitAny": true,
"suppressImplicitAnyIndexErrors": true
}
}
Systemjs.config.js:
/**
* System configuration for Angular 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',
'angular-in-memory-web-api': 'npm:angular-in-memory-web-api/bundles/in-memory-web-api.umd.js'
},
// 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'
}
}
});
})(this);
My index.html has the following contents
<!DOCTYPE html>
<html>
<head>
<title>Angular QuickStart</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="styles.css">
<!-- Polyfill(s) for older browsers -->
<script src="node_modules/core-js/client/shim.min.js"></script>
<script src="node_modules/zone.js/dist/zone.js"></script>
<script src="node_modules/reflect-metadata/Reflect.js"></script>
<script src="node_modules/systemjs/dist/system.src.js"></script>
<script src="systemjs.config.js"></script>
<script>
System.import('app').catch(function(err){ console.error(err); });
</script>
</head>
<body>
<my-app>Loading</my-app>
</body>
</html>
In app.module.ts, I have
import { NgModule } from "@angular/core";
import { BrowserModule } from "@angular/platform-browser";
import { AppComponent } from "./app.component";
@NgModule({
imports: [ BrowserModule ],
declarations: [ AppComponent ],
bootstrap: [ AppComponent ]
})
export class AppModule { }
In app.component.ts:
import { Component } from "@angular/core";
@Component({
selector: "my-app",
template: "<h2>Initiating {{angularVersion}}</h2>"
})
export class AppComponent {
angularVersion = "Angular2.0";
}
and finally in main.ts, I have:
import { platformBrowserDynamic } from "@angular/platform-browser-dynamic";
import { AppModule } from "./app.module";
platformBrowserDynamic().bootstrapModule(AppModule);
This displays the output as "Initiating Angular2.0" when I set index.html as startup file in visual studio 2015 and run the project. My problem is, even if I update angularVersion variable to 2.1 or change anything else (from h2 to p etc) and rerun the file, It would still present me "Initiating Angular2.0". Even hardcoding the Template won't update anything. I don't have any idea what I am doing wrong but it has started to frustrate a lot now. Any help please?
Hit F12 in your browser to bring up the Developer Tools. Disable the Cache as shown below
Secondly, I had to add this section just above tag in web.config to disable cache
Source: See here