test(slides): add test to toggle the last slide with ngIf

references #6651

src/components/slides/test/intro/index.ts

@@ -19,6 +19,7 @@ class IntroPage {
   continueText: string = "Skip";
   startingIndex: number = 1;
   mySlideOptions;
+  showSlide: boolean = true;
 
   constructor(private nav: NavController) {
     this.mySlideOptions = {
@@ -42,6 +43,10 @@ class IntroPage {
     console.log("Slide move", slider);
   }
 
+  toggleLastSlide() {
+    this.showSlide = !this.showSlide;
+  }
+
   skip() {
     this.nav.push(MainPage);
   }