From 213815cf4c9d49fe3a8eb295a8adb1105a85951f Mon Sep 17 00:00:00 2001
From: Brandy Carney <brandy@ionic.io>
Date: Fri, 13 Oct 2017 13:19:12 -0400
Subject: [PATCH] docs(select): include popover for interface docs

---
 packages/core/src/components/select/select.tsx | 7 ++++---
 packages/core/src/utils/helpers.ts             | 2 ++
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/packages/core/src/components/select/select.tsx b/packages/core/src/components/select/select.tsx
index c34515a115..69050cc9ed 100644
--- a/packages/core/src/components/select/select.tsx
+++ b/packages/core/src/components/select/select.tsx
@@ -61,9 +61,10 @@ export class Select {
   @Prop() placeholder: string;
 
   /**
-   * @input {any} Any additional options that the `alert` or `action-sheet` interface can take.
-   * See the [AlertController API docs](../../alert/AlertController/#create) and the
-   * [ActionSheetController API docs](../../action-sheet/ActionSheetController/#create) for the
+   * @input {any} Any additional options that the `alert`, `action-sheet` or `popover` interface
+   * can take. See the [AlertController API docs](../../alert/AlertController/#create), the
+   * [ActionSheetController API docs](../../action-sheet/ActionSheetController/#create) and the
+   * [PopoverController API docs](../../popover/PopoverController/#create) for the
    * create options for each interface.
    */
   @Prop() selectOptions: any = {};
diff --git a/packages/core/src/utils/helpers.ts b/packages/core/src/utils/helpers.ts
index 1f0f625c03..16e6784393 100644
--- a/packages/core/src/utils/helpers.ts
+++ b/packages/core/src/utils/helpers.ts
@@ -22,6 +22,8 @@ export function isFunction(v: any): v is (Function) { return typeof v === 'funct
 
 export function isStringOrNumber(v: any): v is (string | number) { return isString(v) || isNumber(v); }
 
+export function isBlank(val: any): val is null { return val === undefined || val === null; }
+
 /** @hidden */
 export function isCheckedProperty(a: any, b: any): boolean {
   if (a === undefined || a === null || a === '') {