Move increment/decrement to i18n. Update to use "name".

src/app/shared/form/number-picker/number-picker.component.html

@@ -6,7 +6,7 @@
       [disabled]="disabled"
       (click)="toggleUp()">
       <span class="chevron"></span>
-      <span class="sr-only">Increment {{placeholder}}</span>
+      <span class="sr-only">{{'form.number-picker.increment' | translate: {field: name} }}</span>
     </button>
     <input
       id="{{id}}"
@@ -33,6 +33,6 @@
       [disabled]="disabled"
       (click)="toggleDown()">
       <span class="chevron bottom"></span>
-      <span class="sr-only">Decrement {{placeholder}}</span>
+      <span class="sr-only">{{'form.number-picker.decrement' | translate: {field: name} }}</span>
     </button>
 </div>

src/app/shared/form/number-picker/number-picker.component.spec.ts

@@ -7,6 +7,7 @@ import { By } from '@angular/platform-browser';
 import { NumberPickerComponent } from './number-picker.component';
 import { FormsModule, ReactiveFormsModule } from '@angular/forms';
 import { createTestComponent } from '../../testing/utils.test';
+import { TranslateModule } from '@ngx-translate/core';
 
 describe('NumberPickerComponent test suite', () => {
 
@@ -23,7 +24,8 @@ describe('NumberPickerComponent test suite', () => {
       imports: [
         FormsModule,
         ReactiveFormsModule,
-        NgbModule
+        NgbModule,
+        TranslateModule.forRoot()
       ],
       declarations: [
         NumberPickerComponent,

src/app/shared/form/number-picker/number-picker.component.ts

@@ -1,5 +1,6 @@
 import { ChangeDetectorRef, Component, EventEmitter, Input, OnInit, Output, SimpleChanges, } from '@angular/core';
 import { ControlValueAccessor, UntypedFormBuilder, NG_VALUE_ACCESSOR } from '@angular/forms';
+import { TranslateService } from '@ngx-translate/core';
 import { isEmpty } from '../../empty.util';
 
 @Component({
@@ -31,7 +32,9 @@ export class NumberPickerComponent implements OnInit, ControlValueAccessor {
 
   startValue: number;
 
-  constructor(private fb: UntypedFormBuilder, private cd: ChangeDetectorRef) {
+  constructor(private fb: UntypedFormBuilder,
+              private cd: ChangeDetectorRef,
+              private translate: TranslateService) {
   }
 
   ngOnInit() {

src/assets/i18n/en.json5

@@ -1770,6 +1770,10 @@
 
   "form.repeatable.sort.tip": "Drop the item in the new position",
 
+  "form.number-picker.decrement": "Decrement {{field}}",
+
+  "form.number-picker.increment": "Increment {{field}}",
+
   "grant-deny-request-copy.deny": "Don't send copy",
 
   "grant-deny-request-copy.email.back": "Back",