docs(nav): .catch() is not longer needed

src/components/alert/alert-component.ts

@@ -256,9 +256,7 @@ export class AlertCmp {
     }
 
     if (shouldDismiss) {
-      this.dismiss(button.role).catch(() => {
-        console.debug('alert can not be dismissed');
-      });
+      this.dismiss(button.role);
     }
   }
 

src/components/modal/modal-component.ts

@@ -98,9 +98,7 @@ export class ModalCmp {
       const opts: NavOptions = {
         minClickBlockDuration: 400
       };
-      return this._viewCtrl.dismiss(null, 'backdrop', opts).catch(() => {
-        console.debug('Dismiss modal by clicking backdrop was cancelled');
-      });
+      return this._viewCtrl.dismiss(null, 'backdrop', opts);
     }
   }
 

src/components/modal/test/basic/pages/modal-pass-data/modal-pass-data.ts

@@ -42,9 +42,7 @@ export class ModalPassData {
 
   submit() {
     console.time('modal');
-    this.viewCtrl.dismiss(this.data).catch(() => {
-      console.log('submit was cancelled');
-    });
+    this.viewCtrl.dismiss(this.data);
   }
 
   ionViewCanEnter() {

src/components/nav/nav-push.ts

@@ -74,9 +74,7 @@ export class NavPush {
   @HostListener('click')
   onClick(): boolean {
     if (this._nav && this.navPush) {
-      this._nav.push(this.navPush, this.navParams).catch(() => {
-        console.debug('navPush was rejected');
-      });
+      this._nav.push(this.navPush, this.navParams);
       return false;
     }
     return true;

src/components/nav/test/basic/pages/first-page/first-page.ts

@@ -84,6 +84,7 @@ export class FirstPage {
   }
 
   ionViewCanLeave() {
+    this.called.ionViewCanLeave++;
     if (this.canLeave) {
       return true;
     }
@@ -93,8 +94,6 @@ export class FirstPage {
     alert.addButton({ text: 'Umm, ok', role: 'cancel', });
     alert.present();
 
-    this.called.ionViewCanLeave++;
-
     return false;
   }
 
@@ -132,7 +131,6 @@ export class FirstPage {
     this.navCtrl.push('full-page', { id: 8675309, myData: [1, 2, 3, 4] }, {
       animate: true,
       animation: 'md-transition'
-    }).catch(() => {
     });
   }
 
@@ -140,36 +138,30 @@ export class FirstPage {
     this.navCtrl.push('another-page', null, {
       animate: true,
       animation: 'wp-transition'
-    }).catch(() => {
     });
   }
 
   pushTabsPage() {
-    this.navCtrl.push('tabs').catch(() => {
-    });
+    this.navCtrl.push('tabs');
   }
 
 
   quickPush() {
-    this.navCtrl.push('another-page').catch(() => {
-    });
+    this.navCtrl.push('another-page');
     setTimeout(() => {
-      this.navCtrl.push('primary-header-page').catch(() => {
-      });
+      this.navCtrl.push('primary-header-page');
     }, 150);
   }
 
   quickPop() {
-    this.navCtrl.push('another-page').catch(() => {
-    });
+    this.navCtrl.push('another-page');
     setTimeout(() => {
-      this.navCtrl.remove(1, 1).catch(() => {
-      });
+      this.navCtrl.remove(1, 1);
     }, 250);
   }
 
   pop() {
-    this.navCtrl.pop().catch(() => {});
+    this.navCtrl.pop();
   }
 
   viewDismiss() {

src/components/nav/test/basic/pages/tab-three/tab-three.ts

@@ -42,6 +42,7 @@ export class Tab3 {
   }
 
   presentModal() {
+    console.debug('modal was commented out');
     // this.modalCtrl.create(MyModal).present();
   }
 

src/components/nav/test/worst-case/app.module.ts

@@ -132,9 +132,11 @@ export class Page4 extends Base {
     setTimeout(() => {
       this.doSomethingSync();
       setTimeout(() => {
-        this.nav.push(Page5).catch(() => {
-          this.nav.push(Page6, { continue: false });
-          setTimeout(() => this.nav.push(Page6, { continue: true }), 510);
+        this.nav.push(Page5).then((hasCompleted) => {
+          if (!hasCompleted) {
+            this.nav.push(Page6, { continue: false });
+            setTimeout(() => this.nav.push(Page6, { continue: true }), 510);
+          }
         });
       }, 2000);
     }, 0);
@@ -202,10 +204,12 @@ export class Page6 extends Base {
   }
 
   pop() {
-    this.nav.pop().then(() => {
-      this.pushPage7();
-    }).catch(() => {
-      this.pop();
+    this.nav.pop().then((hasCompleted) => {
+      if (hasCompleted) {
+        this.pushPage7();
+      } else {
+        this.pop();
+      }
     });
   }
 

src/components/tabs/tabs.ts

@@ -506,9 +506,7 @@ export class Tabs extends Ion implements AfterViewInit, RootNode {
 
       } else if (tab.length() > 1) {
         // if we're a few pages deep, pop to root
-        tab.popToRoot().catch(() => {
-          console.debug('Tabs: pop to root was cancelled');
-        });
+        tab.popToRoot();
       } else {
         getComponent(this._linker, tab.root).then(viewController => {
           if (viewController.component !== active.component) {

src/components/tabs/test/advanced/pages/tab1-page1/tab1-page1.ts

@@ -28,9 +28,7 @@ export class Tab1Page1 {
   }
 
   logout() {
-    this.app.getRootNav().setRoot('sign-in', null, { animate: true, direction: 'back' }).catch(() => {
-      console.debug('logout cancelled');
-    });
+    this.app.getRootNav().setRoot('sign-in', null, { animate: true, direction: 'back' });
   }
 
   ionViewWillEnter() {

src/components/tabs/test/advanced/pages/tabs-page/tabs.ts

@@ -37,9 +37,7 @@ export class TabsPage {
   }
 
   logout() {
-    this.navCtrl.pop().catch(() => {
-      console.log('Cannot go back.');
-    });
+    this.navCtrl.pop();
   }
 
   ionViewCanLeave() {