Angular App Optimization Techniques
Duration : 00:04:00
Angular App Optimization Techniques
Optimize your Angular application for better performance and reduced loading times using various techniques.Example
# Example: Generate a production build with Angular CLI
ng build --prod
Looking into Bundle
Analyze your application's bundles to identify and address any size-related issues.Example
# Example: Analyze bundle sizes using Webpack Bundle Analyzer
npm install --save-dev webpack-bundle-analyzer
ng build --prod --stats-json
npx webpack-bundle-analyzer dist/stats.json
Adding Source Map Explorer
Utilize Source Map Explorer to visualize and understand the composition of your application's source maps.Example
# Example: Install and use Source Map Explorer
npm install -g source-map-explorer
source-map-explorer dist/main.<hash>.js
Lazy Loading
Implement lazy loading to load parts of your Angular application on-demand, improving initial load times.Example
// Example: Lazy load a module in your route configuration
const routes: Routes = [
{ path: 'lazy', loadChildren: () => import('./lazy/lazy.module').then(m => m.LazyModule) }
];
Enabling Lazy Loading
Enable lazy loading in your Angular application's configuration for specific feature modules.Example
// Example: Configure lazy loading in your application
@NgModule({
imports: [RouterModule.forRoot(routes, { enableTracing: true })],
exports: [RouterModule]
})
export class AppRoutingModule { }
Removing Shared Module
Remove unnecessary shared modules to reduce the size of your bundles and improve load times.Example
// Example: Eliminate shared module imports if not needed
@NgModule({
imports: [CommonModule, SharedModule],
declarations: [SomeComponent]
})
export class FeatureModule { }
Specifying Budgets
Set budgets for your application's bundle sizes to prevent bloat and maintain performance.Example
// Example: Specify bundle size budgets in your Angular.json file
"configurations": {
"production": {
"budgets": [
{
"type": "initial",
"maximumWarning": "2mb",
"maximumError": "5mb"
},
{
"type": "anyComponentStyle",
"maximumWarning": "6kb",
"maximumError": "10kb"
}
]
}
}
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