Techniques

Advanced

(for enterprise applications!)

jdjuan.github.io/ng-now/

jdjuan.github.io/ng-now/

@jdjuan + @caroso1222

Google Developer Expert

Google Developer Expert

Ask me how to become a:

⭐️ Google Developer Expert ⭐️

@jdjuan

slides.com/
jdjuan

Framework

@jdjuan

@jdjuan

Ecosystem

medium.com/@jdjuan

@jdjuan

Problem

@jdjuan

@jdjuan

@jdjuan

#1

@jdjuan

@jdjuan

tsconfig.json

@jdjuan

#2

#3

📁

@jdjuan

LIFT

Keep your folder
structure maintainable

@jdjuan

LOCATE

 How quickly can you locate files in a project?

📁

@jdjuan

@jdjuan

@jdjuan

IDENTIFY

 How quickly can you identify a file's purpose?

📁

@jdjuan

FLAT

 How flat is your folder tree?

📁

@jdjuan

@jdjuan

7 files per folder

@jdjuan

TRY DRY

Don't Repeat Yourself

📁

#4

📦

@jdjuan

Modules

@jdjuan

Special
Modules

@jdjuan

Singleton

Shared

@jdjuan

MaterialModule

#5

🐫

@jdjuan

@jdjuan

What standard should I follow for naming?

Be clear

Don't add meta data

Consider the context

@jdjuan

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

@jdjuan

transactionTime

transactionInactivityTimeValue

transactionInactivityTimePurchaseProduct

@jdjuan

transactionMaxIdleTime

txMaxIdleTime

txMaxIdleMilliseconds

@jdjuan

Camel case for variables and functions

Title case for classes and interfaces

Dash case for files and folders

@jdjuan

camelCaseForVariablesAndFunctions

dash-case-for-files-and-folders

TitleCaseForClassesAndInterfaces

@jdjuan

@jdjuan

tinyurl.com/my-vscode

#6

ASYNC

SUBSCRIBE

OR

yesno.wtf

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 

DEMO

DEMO

DOCS

📝

SOURCE CODE

THANK YOU!

@jdjuan

Made with Slides.com