From 472673d3c2272f455a3ac456970f47a1257c87a7 Mon Sep 17 00:00:00 2001
From: Dan Monroe <danmonroe67@gmail.com>
Date: Mon, 4 Feb 2019 21:29:58 -0500
Subject: [PATCH] [DOC lts] Addressed PR comments by rwjblue

(cherry picked from commit dc9cc71fe063dbb33d22f09015980855ea97f77b)
---
 .../@ember/-internals/glimmer/lib/helpers/component.ts    | 2 +-
 packages/@ember/-internals/glimmer/lib/helpers/concat.ts  | 8 +++++---
 .../@ember/-internals/glimmer/lib/helpers/if-unless.ts    | 4 ++--
 3 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/packages/@ember/-internals/glimmer/lib/helpers/component.ts b/packages/@ember/-internals/glimmer/lib/helpers/component.ts
index 34bffad8dc5..f9ea6a48103 100644
--- a/packages/@ember/-internals/glimmer/lib/helpers/component.ts
+++ b/packages/@ember/-internals/glimmer/lib/helpers/component.ts
@@ -112,7 +112,7 @@
 
   ```
   <PersonForm as |form|>
-    <form.nameInput @placeholder={{"Username"}} />
+    <form.nameInput @placeholder="Username" />
   </PersonForm>
   ```
 
diff --git a/packages/@ember/-internals/glimmer/lib/helpers/concat.ts b/packages/@ember/-internals/glimmer/lib/helpers/concat.ts
index 967de6afb8d..8a0b29ecf00 100644
--- a/packages/@ember/-internals/glimmer/lib/helpers/concat.ts
+++ b/packages/@ember/-internals/glimmer/lib/helpers/concat.ts
@@ -22,13 +22,15 @@ const normalizeTextValue = (value: any): string => {
   Example:
 
   ```handlebars
-  <SomeComponent @name={{concat firstName " " lastName}} />
+  {{some-component name=(concat firstName " " lastName)}}
 
   {{! would pass name="<first name value> <last name value>" to the component}}
   ```
-  or
+
+  or for angle bracket invocation, you actually don't need concat at all.
+
   ```handlebars
-  {{some-component name=(concat firstName " " lastName)}}
+  <SomeComponent @name="{{firstName lastName}}" />
   ```
 
   @public
diff --git a/packages/@ember/-internals/glimmer/lib/helpers/if-unless.ts b/packages/@ember/-internals/glimmer/lib/helpers/if-unless.ts
index 9f4d95b1c73..eedd69aece7 100644
--- a/packages/@ember/-internals/glimmer/lib/helpers/if-unless.ts
+++ b/packages/@ember/-internals/glimmer/lib/helpers/if-unless.ts
@@ -118,7 +118,7 @@ class ConditionalHelperReference extends CachedReference {
   You can use the `if` helper inside another helper as a nested helper:
 
   ```handlebars
-  <SomeComponent height={{if isBig "100" "10"}} />
+  <SomeComponent @height={{if isBig "100" "10"}} />
   ```
 
   or
@@ -157,7 +157,7 @@ export function inlineIf(_vm: VM, { positional }: Arguments) {
   You can use the `unless` helper inside another helper as a subexpression.
 
   ```handlebars
-  <SomeComponent height={{unless isBig "10" "100"}} />
+  <SomeComponent @height={{unless isBig "10" "100"}} />
   ```
 
   or