Set up scenario

projects/mylib/src/lib/mylib.module.ts

@@ -1,10 +1,36 @@
-import { NgModule } from '@angular/core';
+import { NgModule, APP_INITIALIZER } from '@angular/core';
 import { MylibComponent } from './mylib.component';
 
+export function myLibInit() {
+  return () => console.log('Hi from exported function');
+}
+
 @NgModule({
   imports: [
   ],
   declarations: [MylibComponent],
-  exports: [MylibComponent]
+  exports: [MylibComponent],
+  providers: [
+    {
+      provide: APP_INITIALIZER,
+      multi: true,
+      /**
+       * Option 1. Defining the useFactory function as an exported function as instructed in
+       * the docs - https://angular.io/guide/aot-compiler#function-calls-are-not-supported:
+       * - Throws build error in both dev and prod: "Lambda not supported"
+       */
+      useFactory: myLibInit
+
+      /**
+       * Option 2. Defining the useFactory function using the ES6 object method shorthand notation:
+       * - Builds successfully in both dev and prod
+       * - No runtime error in dev
+       * - Throws runtime error in prod: "TypeError: this.appInits[i] is not a function"
+       */
+      // useFactory() {
+      //   return () => console.log('Hi from ES6 object method shorthand')
+      // }
+    }
+  ]
 })
 export class MylibModule { }

src/app/app.component.html

@@ -1,20 +1 @@
-<!--The content below is only a placeholder and can be replaced.-->
-<div style="text-align:center">
-  <h1>
-    Welcome to {{title}}!
-  </h1>
-  <img width="300" src="data:image/svg+xml;base64,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">
-</div>
-<h2>Here are some links to help you start: </h2>
-<ul>
-  <li>
-    <h2><a target="_blank" href="https://angular.io/tutorial">Tour of Heroes</a></h2>
-  </li>
-  <li>
-    <h2><a target="_blank" href="https://github.com/angular/angular-cli/wiki">CLI Documentation</a></h2>
-  </li>
-  <li>
-    <h2><a target="_blank" href="http://angularjs.blogspot.ca/">Angular blog</a></h2>
-  </li>
-</ul>
-
+<lib-mylib></lib-mylib>

src/app/app.module.ts

@@ -2,13 +2,15 @@ import { BrowserModule } from '@angular/platform-browser';
 import { NgModule } from '@angular/core';
 
 import { AppComponent } from './app.component';
+import { MylibModule } from 'mylib';
 
 @NgModule({
   declarations: [
     AppComponent
   ],
   imports: [
-    BrowserModule
+    BrowserModule,
+    MylibModule
   ],
   providers: [],
   bootstrap: [AppComponent]