fix: Error on disabled option with an empty array #13

src/app/lib/ngx-select/ngx-select.component.spec.ts

@@ -115,6 +115,7 @@ describe('NgxSelectComponent', () => {
     const selectItemList = (id: number) => fixture.debugElement.nativeElement
         .querySelectorAll(`#sel-${id} .ngx-select.open .ngx-select__item`);
     const selectItemActive = (id: number) => el(id).querySelector('.ngx-select__item_active');
+    const selectItemNoFound = (id: number) => el(id).querySelector('.ngx-select__item_no-found');
     const selectedItem = (id: number) => el(id).querySelector('.ngx-select__selected-single'); // select multiple = false
     const selectedItems = (id: number) => el(id).querySelectorAll('.ngx-select__selected-plural'); // select multiple = true
 
@@ -142,6 +143,14 @@ describe('NgxSelectComponent', () => {
         expect(selectItemList(2).length).toBe(0);
     });
 
+    it('should to show "no found message" for empty items', () => {
+        fixture.componentInstance.select1.items = [];
+        fixture.detectChanges();
+        formControl(1).click();
+        fixture.detectChanges();
+        expect(selectItemNoFound(1)).toBeTruthy();
+    });
+
     describe('should have value', () => {
         beforeEach(() => {
             fixture = TestBed.createComponent(TestNgxSelectComponent);

src/app/lib/ngx-select/ngx-select.component.ts

@@ -357,7 +357,7 @@ export class NgxSelectComponent implements ControlValueAccessor, DoCheck, AfterC
     }
 
     protected optionActivate(option: NgxSelectOption): void {
-        if (!option.disabled) {
+        if (!option || !option.disabled) {
             this.optionActive = option;
         }
     }