Merge pull request #299 from 10up/upkeep/component-is-admin

upkeep:  Add TS support for `IsAdmin` component

components/is-admin/index.js → components/is-admin/index.tsx

@@ -1,19 +1,29 @@
 import { useSelect } from '@wordpress/data';
 
+interface IsAdminProps {
+	/**
+	 * Fallback component.
+	 */
+	fallback: React.ReactNode | null;
+
+	/**
+	 * Child component.
+	 */
+	children: React.ReactNode;
+}
+
 /**
  * IsAdmin
  *
  * A wrapper component that checks wether the current user has admin capabilities
  * and only returns the child components if the user is an admin. You can pass a
  * fallback component via the fallback prop.
- *
- * @param {object} props react props
- * @param {*} props.fallback fallback component
- * @param {*} props.children child components
- * @returns {*}
  */
-export const IsAdmin = ({ fallback = null, children }) => {
-	const hasAdminPermissions = useSelect(
+export const IsAdmin: React.FC<IsAdminProps> = ({
+	fallback = null,
+	children,
+}) => {
+	const hasAdminPermissions: boolean = useSelect(
 		(select) => select('core').canUser('read', 'users?roles=1'),
 		[],
 	);