From ddd8e759c1a166e6dbc7de2be669791fda24ba64 Mon Sep 17 00:00:00 2001
From: Andy <anhans@microsoft.com>
Date: Wed, 10 Jan 2018 11:13:47 -0800
Subject: [PATCH] Use 'append' helper (#21101)

---
 src/compiler/parser.ts | 10 +---------
 1 file changed, 1 insertion(+), 9 deletions(-)

diff --git a/src/compiler/parser.ts b/src/compiler/parser.ts
index bae9f0594ed..0e2118af52a 100644
--- a/src/compiler/parser.ts
+++ b/src/compiler/parser.ts
@@ -786,15 +786,7 @@ namespace ts {
             const comments = getJSDocCommentRanges(node, sourceFile.text);
             if (comments) {
                 for (const comment of comments) {
-                    const jsDoc = JSDocParser.parseJSDocComment(node, comment.pos, comment.end - comment.pos);
-                    if (jsDoc) {
-                        if (!node.jsDoc) {
-                            node.jsDoc = [jsDoc];
-                        }
-                        else {
-                            node.jsDoc.push(jsDoc);
-                        }
-                    }
+                    node.jsDoc = append(node.jsDoc, JSDocParser.parseJSDocComment(node, comment.pos, comment.end - comment.pos));
                 }
             }