Upgrading to Angular 20:

Replaced checked in package-lock.json by regenerated one.
Ran ng update @angular/core@20 @angular/cli@20
Ran npm install @angular-builders/jest@^20.0.0 @fortawesome/angular-fontawesome@^3.0.0 @swimlane/ngx-graph@^11
Ran npm install ngx-mat-select-search@^8.0.2.
Ran ng update @angular/material@20.
Updated all eslint and typescript to the latest versions.
Removed @angular-devkit/schematics.
Updated fontawesome.
Updated rxjs and tslib.
Moved required node version from 16 to 20.
Updated jest-preset-angular.
Set preserveWhitespaces to false.
Corrected two type declarations in two typescript files to make ng serve run without errors.
Removed unused angular-devkit/schematics from view-user.component.ts .
Updated list of supported browsers.
Upgraded prettier.
Ran prettier . --write the first time.
Ran prettier . --write the second time.
Ran ng generate @angular/core:inject with defaults, excepted a handful of files.
Fixed remaining eslint problems.
Added dist directory to ignores in eslint.config.js.
Let prettier fix formatting, almost everything is just line breaks.
Made htmlhint ignore @if and @for Angular constructs.
Updated node version in Github workflow to 22.12.0 (build.yml).
Updated .env.ts.
Updated Angular datetime format strings from YYYY-MM-DD to yyyy-MM-dd.
Merged changes from dev into angular20 branch.

src/app/clients/clients-view/charges/charges-overview/charge-overview.resolver.ts

@@ -1,5 +1,5 @@
 /** Angular Imports */
-import { Injectable } from '@angular/core';
+import { Injectable, inject } from '@angular/core';
 import { ActivatedRouteSnapshot } from '@angular/router';
 
 /** rxjs Imports */
@@ -13,10 +13,7 @@ import { ClientsService } from '../../../clients.service';
  */
 @Injectable()
 export class ClientChargeOverviewResolver {
-  /**
-   * @param {ClientsService} ClientsService Clients service.
-   */
-  constructor(private clientsService: ClientsService) {}
+  private clientsService = inject(ClientsService);
 
   /**
    * Returns the Client Charge data.

src/app/clients/clients-view/charges/charges-overview/charges-overview.component.ts

@@ -1,5 +1,5 @@
 /** Angular Imports */
-import { Component, OnInit, ViewChild } from '@angular/core';
+import { Component, OnInit, ViewChild, inject } from '@angular/core';
 import { MatDialog } from '@angular/material/dialog';
 import { MatPaginator } from '@angular/material/paginator';
 import {
@@ -47,6 +47,9 @@ import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
   ]
 })
 export class ChargesOverviewComponent implements OnInit {
+  private route = inject(ActivatedRoute);
+  dialog = inject(MatDialog);
+
   /** Columns to be displayed in charge overview table. */
   displayedColumns: string[] = [
     'name',
@@ -69,10 +72,7 @@ export class ChargesOverviewComponent implements OnInit {
    * @param {ActivatedRoute} route Activated Route.
    * @param {MatDialog} dialog Dialog reference.
    */
-  constructor(
-    private route: ActivatedRoute,
-    public dialog: MatDialog
-  ) {
+  constructor() {
     this.route.data.subscribe((data: { clientChargesData: any }) => {
       this.chargeOverviewData = data.clientChargesData;
     });

src/app/clients/clients-view/charges/client-pay-charges/client-pay-charges.component.html

@@ -5,10 +5,12 @@
         <mat-form-field>
           <mat-label> {{ 'labels.inputs.Amount' | translate }} </mat-label>
           <input matInput required autofocus formControlName="amount" />
-          <mat-error *ngIf="transactionForm.controls.amount.hasError('required')">
-            {{ 'labels.inputs.Amount' | translate }} {{ 'labels.commons.is' | translate }}
-            <strong>{{ 'labels.commons.required' | translate }}</strong>
-          </mat-error>
+          @if (transactionForm.controls.amount.hasError('required')) {
+            <mat-error>
+              {{ 'labels.inputs.Amount' | translate }} {{ 'labels.commons.is' | translate }}
+              <strong>{{ 'labels.commons.required' | translate }}</strong>
+            </mat-error>
+          }
         </mat-form-field>
 
         <mat-form-field (click)="transactionDatePicker.open()">
@@ -22,10 +24,12 @@
           />
           <mat-datepicker-toggle matSuffix [for]="transactionDatePicker"></mat-datepicker-toggle>
           <mat-datepicker #transactionDatePicker></mat-datepicker>
-          <mat-error *ngIf="transactionForm.controls.transactionDate.hasError('required')">
-            {{ 'labels.inputs.Transaction date' | translate }} {{ 'labels.commons.is' | translate }}
-            <strong>{{ 'labels.commons.required' | translate }}</strong>
-          </mat-error>
+          @if (transactionForm.controls.transactionDate.hasError('required')) {
+            <mat-error>
+              {{ 'labels.inputs.Transaction date' | translate }} {{ 'labels.commons.is' | translate }}
+              <strong>{{ 'labels.commons.required' | translate }}</strong>
+            </mat-error>
+          }
         </mat-form-field>
       </div>
 

src/app/clients/clients-view/charges/client-pay-charges/client-pay-charges.component.ts

@@ -1,5 +1,5 @@
 /** Angular Imports */
-import { Component, OnInit } from '@angular/core';
+import { Component, OnInit, inject } from '@angular/core';
 import { UntypedFormBuilder, Validators, ReactiveFormsModule } from '@angular/forms';
 import { ActivatedRoute, Router, RouterLink } from '@angular/router';
 
@@ -21,6 +21,13 @@ import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
   ]
 })
 export class ClientPayChargesComponent implements OnInit {
+  private clientsService = inject(ClientsService);
+  private formBuilder = inject(UntypedFormBuilder);
+  private route = inject(ActivatedRoute);
+  private router = inject(Router);
+  private dateUtils = inject(Dates);
+  private settingsService = inject(SettingsService);
+
   /** Transaction Form. */
   transactionForm: any;
   /** Transaction Data. */
@@ -36,14 +43,7 @@ export class ClientPayChargesComponent implements OnInit {
    * @param {Router} router Router for navigation.
    * @param {SettingsService} settingsService Setting service
    */
-  constructor(
-    private clientsService: ClientsService,
-    private formBuilder: UntypedFormBuilder,
-    private route: ActivatedRoute,
-    private router: Router,
-    private dateUtils: Dates,
-    private settingsService: SettingsService
-  ) {
+  constructor() {
     this.route.data.subscribe((data: { transactionData: any }) => {
       this.transactionData = data.transactionData;
     });

src/app/clients/clients-view/charges/view-charge/view-charge.component.html

@@ -74,51 +74,48 @@
         <b> {{ 'labels.heading.Transactions' | translate }} </b>
       </h1>
 
-      <table mat-table [dataSource]="chargeData.clientTransactionDatas" *ngIf="chargeData.clientTransactionDatas">
-        <ng-container matColumnDef="id">
-          <th mat-header-cell *matHeaderCellDef>{{ 'labels.inputs.ID' | translate }}</th>
-          <td mat-cell *matCellDef="let element" [ngClass]="{ strikeoff: element.reversed }">{{ element.id }}</td>
-        </ng-container>
-
-        <ng-container matColumnDef="officeName">
-          <th mat-header-cell *matHeaderCellDef>{{ 'labels.inputs.Office Name' | translate }}</th>
-          <td mat-cell *matCellDef="let element" [ngClass]="{ strikeoff: element.reversed }">
-            {{ element.officeName }}
-          </td>
-        </ng-container>
-
-        <ng-container matColumnDef="type">
-          <th mat-header-cell *matHeaderCellDef>{{ 'labels.inputs.Type' | translate }}</th>
-          <td mat-cell *matCellDef="let element" [ngClass]="{ strikeoff: element.reversed }">
-            {{ element.type.value }}
-          </td>
-        </ng-container>
-        <ng-container matColumnDef="transactionDate">
-          <th mat-header-cell *matHeaderCellDef>{{ 'labels.inputs.Transaction Date' | translate }}</th>
-          <td mat-cell *matCellDef="let element" [ngClass]="{ strikeoff: element.reversed }">
-            {{ element.date | dateFormat }}
-          </td>
-        </ng-container>
-
-        <ng-container matColumnDef="amount">
-          <th mat-header-cell *matHeaderCellDef>{{ 'labels.inputs.Amount' | translate }}</th>
-          <td mat-cell *matCellDef="let element" [ngClass]="{ strikeoff: element.reversed }">
-            {{ element.amount | formatNumber }}
-          </td>
-        </ng-container>
-
-        <ng-container matColumnDef="actions">
-          <th mat-header-cell *matHeaderCellDef>{{ 'labels.inputs.Actions' | translate }}</th>
-          <td mat-cell *matCellDef="let element" [ngClass]="{ strikeoff: element.reversed }">
-            <button mat-raised-button color="primary" (click)="undoTransaction(element.id)" class="del-btn">
-              <fa-icon icon="trash" class="m-r-10"></fa-icon>
-            </button>
-          </td>
-        </ng-container>
-
-        <tr mat-header-row *matHeaderRowDef="viewChargeTableColumns"></tr>
-        <tr mat-row *matRowDef="let row; columns: viewChargeTableColumns"></tr>
-      </table>
+      @if (chargeData.clientTransactionDatas) {
+        <table mat-table [dataSource]="chargeData.clientTransactionDatas">
+          <ng-container matColumnDef="id">
+            <th mat-header-cell *matHeaderCellDef>{{ 'labels.inputs.ID' | translate }}</th>
+            <td mat-cell *matCellDef="let element" [ngClass]="{ strikeoff: element.reversed }">{{ element.id }}</td>
+          </ng-container>
+          <ng-container matColumnDef="officeName">
+            <th mat-header-cell *matHeaderCellDef>{{ 'labels.inputs.Office Name' | translate }}</th>
+            <td mat-cell *matCellDef="let element" [ngClass]="{ strikeoff: element.reversed }">
+              {{ element.officeName }}
+            </td>
+          </ng-container>
+          <ng-container matColumnDef="type">
+            <th mat-header-cell *matHeaderCellDef>{{ 'labels.inputs.Type' | translate }}</th>
+            <td mat-cell *matCellDef="let element" [ngClass]="{ strikeoff: element.reversed }">
+              {{ element.type.value }}
+            </td>
+          </ng-container>
+          <ng-container matColumnDef="transactionDate">
+            <th mat-header-cell *matHeaderCellDef>{{ 'labels.inputs.Transaction Date' | translate }}</th>
+            <td mat-cell *matCellDef="let element" [ngClass]="{ strikeoff: element.reversed }">
+              {{ element.date | dateFormat }}
+            </td>
+          </ng-container>
+          <ng-container matColumnDef="amount">
+            <th mat-header-cell *matHeaderCellDef>{{ 'labels.inputs.Amount' | translate }}</th>
+            <td mat-cell *matCellDef="let element" [ngClass]="{ strikeoff: element.reversed }">
+              {{ element.amount | formatNumber }}
+            </td>
+          </ng-container>
+          <ng-container matColumnDef="actions">
+            <th mat-header-cell *matHeaderCellDef>{{ 'labels.inputs.Actions' | translate }}</th>
+            <td mat-cell *matCellDef="let element" [ngClass]="{ strikeoff: element.reversed }">
+              <button mat-raised-button color="primary" (click)="undoTransaction(element.id)" class="del-btn">
+                <fa-icon icon="trash" class="m-r-10"></fa-icon>
+              </button>
+            </td>
+          </ng-container>
+          <tr mat-header-row *matHeaderRowDef="viewChargeTableColumns"></tr>
+          <tr mat-row *matRowDef="let row; columns: viewChargeTableColumns"></tr>
+        </table>
+      }
     </div>
 
     <mat-card-actions class="layout-row align-center gap-5px responsive-column">

src/app/clients/clients-view/charges/view-charge/view-charge.component.ts

@@ -1,10 +1,10 @@
 /** Angular Imports */
-import { Component } from '@angular/core';
+import { Component, inject } from '@angular/core';
 import { ActivatedRoute, Router, RouterLink } from '@angular/router';
 import { ClientsService } from 'app/clients/clients.service';
 import { FaIconComponent } from '@fortawesome/angular-fontawesome';
 import { MatCard, MatCardTitle, MatCardContent, MatCardActions } from '@angular/material/card';
-import { NgClass, NgIf } from '@angular/common';
+import { NgClass } from '@angular/common';
 import { MatDivider } from '@angular/material/divider';
 import {
   MatTable,
@@ -52,6 +52,10 @@ import { STANDALONE_SHARED_IMPORTS } from 'app/standalone-shared.module';
   ]
 })
 export class ViewChargeComponent {
+  private route = inject(ActivatedRoute);
+  private router = inject(Router);
+  private clientService = inject(ClientsService);
+
   /** Charge Data. */
   chargeData: any;
   /** Mat Table Column defs. */
@@ -69,11 +73,7 @@ export class ViewChargeComponent {
    * @param {ActivatedRoute} route Activated Route.
    * @param {Router} router Router for navigation.
    */
-  constructor(
-    private route: ActivatedRoute,
-    private router: Router,
-    private clientService: ClientsService
-  ) {
+  constructor() {
     this.route.data.subscribe((data: { clientChargeData: any }) => {
       this.chargeData = data.clientChargeData;
     });