From d36175b1e8741c1a31e3d2bc545dd8a1b2bc6210 Mon Sep 17 00:00:00 2001
From: Andy Hanson <anhans@microsoft.com>
Date: Fri, 5 May 2017 08:51:18 -0700
Subject: [PATCH] Remove some redundant code in
 createJsxAttributesTypeFromAttributesProperty

---
 src/compiler/checker.ts | 12 ++++--------
 1 file changed, 4 insertions(+), 8 deletions(-)

diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
index 84ff54391de..b717a4d196c 100644
--- a/src/compiler/checker.ts
+++ b/src/compiler/checker.ts
@@ -13293,19 +13293,15 @@ namespace ts {
                 if (spread !== emptyObjectType) {
                     if (attributesArray.length > 0) {
                         spread = getSpreadType(spread, createJsxAttributesType(attributes.symbol, attributesTable));
-                        attributesArray = [];
-                        attributesTable = createMap<Symbol>();
                     }
                     attributesArray = getPropertiesOfType(spread);
                 }
 
                 attributesTable = createMap<Symbol>();
-                if (attributesArray) {
-                    forEach(attributesArray, (attr) => {
-                        if (!filter || filter(attr)) {
-                            attributesTable.set(attr.name, attr);
-                        }
-                    });
+                for (const attr of attributesArray) {
+                    if (!filter || filter(attr)) {
+                        attributesTable.set(attr.name, attr);
+                    }
                 }
             }