Techniques

Advanced

(for enterprise applications!)

@jdjuan + @caroso1222

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@jdjuan

Framework

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Ecosystem

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Problem

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#1

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tsconfig.json

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#2

#3

📁

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LIFT

Keep your folder
structure maintainable

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LOCATE

 How quickly can you locate files in a project?

📁

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IDENTIFY

 How quickly can you identify a file's purpose?

📁

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FLAT

 How flat is your folder tree?

📁

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7 files per folder

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TRY DRY

Don't Repeat Yourself

📁

#4

📦

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Modules

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Special
Modules

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Singleton

Shared

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MaterialModule

#5

🐫

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What standard should I follow for naming?

Be clear

Don't add meta data

Consider the context

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Name a variable that store the maximum inactivity time allowed for a transaction in an online store

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transactionTime

transactionInactivityTimeValue

transactionInactivityTimePurchaseProduct

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transactionMaxIdleTime

txMaxIdleTime

txMaxIdleMilliseconds

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Camel case for variables and functions

Title case for classes and interfaces

Dash case for files and folders

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camelCaseForVariablesAndFunctions

dash-case-for-files-and-folders

TitleCaseForClassesAndInterfaces

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@jdjuan

tinyurl.com/my-vscode

#6

ASYNC

SUBSCRIBE

OR

export class AppComponent {
  url = 'https://yesno.wtf/api';
  image;

  constructor(private http: HttpClient) {
    http
      .get(this.url)
      .pipe(pluck('image'))
      .subscribe((image) => (this.image = image));
  }
}

app.component.ts

<img [src]="image" alt="">

app.component.html

export class AppComponent {
  url = 'https://yesno.wtf/api';
  data$;

  constructor(private http: HttpClient) {
    this.data$ = http.get(this.url);
  }
}

app.component.ts

<img [src]="(data$ | async).image">

app.component.html

<div *ngIf="data$ | async as data">
  <img [src]="data.image">
</div>

app.component.html

#7

🌎

const routes: Routes = [
  {
    path: '',
    redirectTo: 'dashboard',
    pathMatch: 'full',
  },
  {
    path: 'forecast/:id',
    loadChildren:
      'src/app/forecast/forecast.module#ForecastModule',
  },
  {
    path: 'dashboard',
    redirectTo: '/dashboard',
    pathMatch: 'full',
  },
  {
    path: 'forecast',
    redirectTo: '/forecast',
    pathMatch: 'full',
  },
  {
    path: '**',
    component: NotFoundComponent,
  },
];

#8

{
  path: 'forecast/:id',
  loadChildren:
    'src/app/forecast/forecast.module#ForecastModule',
}

Lazy Loading

@NgModule({
  imports: [
    RouterModule.forRoot(routes, {
      preloadingStrategy: PreloadAllModules,
    }),
  ],
  exports: [RouterModule],
})

app-routing.component.ts

#9

🥶

BACKGROUND_COLORS = ['#A296F7','#A296F7','#A296F7'];
readonly BACKGROUND_COLORS = ['#A296F7','#A296F7','#A296F7'];

#10

🤵🤵🤵🤵🤵🤵

 Type Coverage 

📝

THANK YOU!

@jdjuan

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