Remove FormBuilder dependency; rname factory methods

* Update factory methods to use the FormGroup(), FormArray(), and
  FormControl() constructors instead of the FormBuilder service.
  This avoids needing to pass the service into each of the static
  factory methods.
* Rename the factory methods to `buildForm`. The consistent use
  of the same name establishes a pattern and makes it clearer
  that the factory methods have the same purpose -- to create the
  (sub)form for the specific component.

apps/static-factory-methods/src/app/address-list/address-list.component.ts

@@ -1,5 +1,5 @@
 import { Component, Input, OnInit } from '@angular/core';
-import { FormArray, FormBuilder } from '@angular/forms';
+import { FormArray } from '@angular/forms';
 import { Address } from '@nested-forms/contact';
 import { AddressComponent } from '../address/address.component';
 
@@ -11,12 +11,12 @@ import { AddressComponent } from '../address/address.component';
 export class AddressListComponent implements OnInit {
   @Input() addressArray: FormArray;
 
-  static createContactAddressListForm(addresses: Address[], fb: FormBuilder): FormArray {
-    const list: FormArray = fb.array([]);
+  static buildForm(addresses: Address[]): FormArray {
+    const list: FormArray = new FormArray([]);
 
     if (addresses) {
       addresses.forEach(addr => {
-        list.push(AddressComponent.createContactAddressForm(addr, fb));
+        list.push(AddressComponent.buildForm(addr));
       });
     }
 

apps/static-factory-methods/src/app/address/address.component.ts

@@ -1,5 +1,5 @@
 import { Component, OnInit, Input } from '@angular/core';
-import { FormBuilder, FormGroup } from '@angular/forms';
+import { FormGroup, FormControl } from '@angular/forms';
 import { Address } from '@nested-forms/contact';
 
 @Component({
@@ -10,13 +10,13 @@ import { Address } from '@nested-forms/contact';
 export class AddressComponent implements OnInit {
   @Input() addressGroup: FormGroup;
   
-  static createContactAddressForm(addr: Address, fb: FormBuilder): FormGroup {
-    return fb.group({
-      line1: [addr ? addr.line1 : ''],
-      line2: [addr ? addr.line2 : ''],
-      city: [addr ? addr.city : ''],
-      state: [addr ? addr.state : ''],
-      postalCode: [addr ? addr.postalCode : ''],
+  static buildForm(addr: Address): FormGroup {
+    return new FormGroup({
+      line1: new FormControl(addr ? addr.line1 : ''),
+      line2: new FormControl(addr ? addr.line2 : ''),
+      city: new FormControl(addr ? addr.city : ''),
+      state: new FormControl(addr ? addr.state : ''),
+      postalCode: new FormControl(addr ? addr.postalCode : ''),
     });
   }
 

apps/static-factory-methods/src/app/app.component.ts

@@ -30,8 +30,8 @@ export class AppComponent implements OnInit, OnDestroy {
       .subscribe((data: Contact) => {
         this.contact = data;
         this.form = this.fb.group({
-          name: NameComponent.createContactNameForm(data.name, this.fb),
-          addresses: AddressListComponent.createContactAddressListForm(data.addresses, this.fb),
+          name: NameComponent.buildForm(data.name),
+          addresses: AddressListComponent.buildForm(data.addresses),
         });
       });
   }

apps/static-factory-methods/src/app/name/name.component.ts

@@ -1,4 +1,4 @@
-import { FormBuilder, FormGroup } from '@angular/forms';
+import { FormControl, FormGroup } from '@angular/forms';
 import { Component, OnInit, Input } from '@angular/core';
 import { Name } from '@nested-forms/contact';
 
@@ -10,14 +10,14 @@ import { Name } from '@nested-forms/contact';
 export class NameComponent implements OnInit {
   @Input() nameGroup: FormGroup;
 
-  static createContactNameForm(name: Name, fb: FormBuilder): FormGroup {
-    return fb.group({
-      firstName: [name ? name.firstName : ''],
-      lastName: [name ? name.lastName : ''],
-      middleName: [name ? name.middleName : ''],
-      prefix: [name ? name.prefix : ''],
-      suffix: [name ? name.suffix : ''],
-    })
+  static buildForm(name: Name): FormGroup {
+    return new FormGroup({
+      firstName: new FormControl(name ? name.firstName : ''),
+      lastName: new FormControl(name ? name.lastName : ''),
+      middleName: new FormControl(name ? name.middleName : ''),
+      prefix: new FormControl(name ? name.prefix : ''),
+      suffix: new FormControl(name ? name.suffix : ''),
+    });
   }
 
   constructor() {}