<mat-card>
  Main Theme:
  <button mat-raised-button color="primary">
    Primary
  </button>
  <button mat-raised-button color="accent">
    Accent
  </button>
  <button mat-raised-button color="warn">
    Warning
  </button>
</mat-card>

@import '~@angular/material/theming';
@include mat-core();

$candy-app-primary: mat-palette($mat-indigo);
$candy-app-accent: mat-palette($mat-pink, A200, A100, A400);
$candy-app-warn: mat-palette($mat-red);

$candy-app-theme: mat-light-theme($candy-app-primary, $candy-app-accent, $candy-app-warn);

@include angular-material-theme($candy-app-theme);

 ng new MyProjectName --style=sass

"styles": [
   "node_modules/material-design-icons/iconfont/material-icons.css",
   "src/styles.css",
   "src/custom.theme.scss"
],

/* @import "~@angular/material/prebuilt-themes/indigo-pink.css"; */

body {
  margin: 0;
}

@import '~@angular/material/theming';
@include mat-core();

$my-app-primary: mat-palette($mat-blue-grey);
$my-app-accent:  mat-palette($mat-pink, 500, 900, A100);
$my-app-warn:    mat-palette($mat-deep-orange);

$my-app-theme: mat-light-theme($my-app-primary, $my-app-accent, $my-app-warn);

@include angular-material-theme($my-app-theme);

.alternate-theme {
  $alternate-primary: mat-palette($mat-light-blue);
  $alternate-accent:  mat-palette($mat-yellow, 400);

  $alternate-theme: mat-light-theme($alternate-primary, $alternate-accent);

  @include angular-material-theme($alternate-theme);
}

<mat-card class="alternate-theme">
  Alternate Theme:
  <button mat-raised-button color="primary">
    Primary
  </button>
  <button mat-raised-button color="accent">
    Accent
  </button>
  <button mat-raised-button color="warn">
    Warning
  </button>
</mat-card>

  <mat-menu #menu="matMenu">
    <button mat-menu-item (click)="openAddContactDialog()">New Contact</button>
    <button mat-menu-item (click)="toggleTheme.emit()">Toggle theme</button>
  </mat-menu>

export class ToolbarComponent implements OnInit {

  @Output() toggleTheme = new EventEmitter<void>();

<app-toolbar (toggleTheme)="toggleTheme()" (toggleSidenav)="sidenav.toggle()"></app-toolbar>

export class SidenavComponent {

  isAlternateTheme = false;

  toggleTheme() {
    this.isAlternateTheme = !this.isAlternateTheme;
  }
}

<mat-sidenav-container fxLayout="row" class="app-sidenav-container" fxFill 
   [class.alternate-theme]="isAlternateTheme">

  <mat-menu #menu="matMenu">
    <button mat-menu-item (click)="openAddContactDialog()">New Contact</button>
    <button mat-menu-item (click)="toggleTheme.emit()">Toggle theme</button>
    <button mat-menu-item (click)="toggleDir.emit()">Toggle dir</button>
  </mat-menu>

export class ToolbarComponent implements OnInit {

  @Output() toggleDir = new EventEmitter<void>();

export class SidenavComponent implements OnInit, OnDestroy {

  dir = "ltr";

  toggleDir() {
    this.dir = this.dir === "ltr" ? "rtl" : "ltr";
  }
}

<mat-sidenav-container fxLayout="row" class="app-sidenav-container" fxFill [dir]="dir"
  [class.alternate-theme]="isAlternateTheme">

[ResponseCache(Duration = 60)]
public IActionResult Contact()
{
   ViewData["Message"] = "Your contact page.";
   return View();
}

 Cache-Control: public,max-age=60

[ResponseCache(Duration = 60, Location = ResponseCacheLocation.Client)]

[ResponseCache(Location = ResponseCacheLocation.None, NoStore = true)]
public IActionResult Error()
{
   return View();
}

Cache-Control: no-store,no-cache
Pragma: no-cache

public void ConfigureServices(IServiceCollection services)
{
    services.AddMvc(options =>
    {
        options.CacheProfiles.Add("PrivateCache",
            new CacheProfile
            {
                Duration = 60,
                Location = ResponseCacheLocation.Client
            }); 
    });

[ResponseCache(CacheProfileName = "PrivateCache")]

{
    "dependencies": {
      //same as before
      "Microsoft.Extensions.Caching.Memory": "1.0.0"
 },

public void ConfigureServices(IServiceCollection services)
{
  services.AddMemoryCache();

[Route("DNT/[controller]")]
public class AboutController : Controller
{
    private readonly IMemoryCache _memoryCache;
 
    public AboutController(IMemoryCache memoryCache)
    {
        _memoryCache = memoryCache;
    }
 
    [Route("")]
    public ActionResult Hello()
    {
 
        string cacheKey = "my-cache-key";
        string greeting;
 
        if (!_memoryCache.TryGetValue(cacheKey, out greeting))
        {
             greeting = "Hello";
            // store in the cache
            _memoryCache.Set(cacheKey, greeting,
                new MemoryCacheEntryOptions()
                .SetAbsoluteExpiration(TimeSpan.FromMinutes(1)));
        }
 
        return Content($"{greeting} from DNT!");
    }

 new MemoryCacheEntryOptions()
  .SetSlidingExpiration(TimeSpan.FromMinutes(5))

 new MemoryCacheEntryOptions()
  .SetSlidingExpiration(TimeSpan.FromMinutes(5))
  .SetAbsoluteExpiration(TimeSpan.FromHours(1))

 new MemoryCacheEntryOptions()
  .SetPriority(CacheItemPriority.NeverRemove))

<cache expires-after="@TimeSpan.FromMinutes(10)">
    @Html.Partial("_WhatsNew")
    *last updated  @DateTime.Now.ToLongTimeString()
</cache>

<cache expires-after="@TimeSpan.FromSeconds(5)">
    <!--View Component or something that gets data from the database-->
    *last updated  @DateTime.Now.ToLongTimeString()
</cache>

<cache expires-on="@DateTime.Today.AddDays(1).AddTicks(-1)">
  <!--View Component or something that gets data from the database-->
 *last updated  @DateTime.Now.ToLongTimeString()
</cache>

<cache expires-sliding="@TimeSpan.FromMinutes(5)">
    <!--View Component or something that gets data from the database-->
    *last updated  @DateTime.Now.ToLongTimeString()
</cache>

<cache vary-by-user="true">
    <!--View Component or something that gets data from the database-->
    *last updated @DateTime.Now.ToLongTimeString()
</cache>

<cache vary-by-route="id">
    <!--View Component or something that gets data from the database-->
    *last updated  @DateTime.Now.ToLongTimeString()
</cache>

<cache vary-by-query="search">
    <!--View Component or something that gets data from the database-->
    *last updated  @DateTime.Now.ToLongTimeString()
</cache>

<cache vary-by-cookie="MyAppCookie">
    <!--View Component or something that gets data from the database-->
    *last updated  @DateTime.Now.ToLongTimeString()
</cache>

 <cache vary-by-header="User-Agent">
    <!--View Component or something that gets data from the database-->
    *last updated  @DateTime.Now.ToLongTimeString()
</cache>

<cache vary-by="@ViewBag.ProductId">
    <!--View Component or something that gets data from the database-->
    *last updated  @DateTime.Now.ToLongTimeString()
</cache>

 <cache vary-by-user="true" vary-by-route="id">
    <!--View Component or something that gets data from the database-->
    *last updated  @DateTime.Now.ToLongTimeString()
</cache>

<cache expires-sliding="@TimeSpan.FromMinutes(10)"
priority="@Microsoft.Extensions.Caching.Memory.CacheItemPriority.NeverRemove">
    <!--View Component or something that gets data from the database-->
    *last updated  @DateTime.Now.ToLongTimeString()
</cache>

"scripts": {
    "postinstall": "typings install"
  },