From 8d31c745861b66a7b1ef00cf6b10077f6eae82dd Mon Sep 17 00:00:00 2001
From: Brandon Luong <bluong@palantir.com>
Date: Thu, 13 Nov 2014 17:19:03 -0800
Subject: [PATCH] Revert optional

---
 d3/d3.d.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/d3/d3.d.ts b/d3/d3.d.ts
index f26538bd1..66a6e4d23 100644
--- a/d3/d3.d.ts
+++ b/d3/d3.d.ts
@@ -18,13 +18,13 @@ declare module D3 {
             *
             * @param selector Selection String to match
             */
-            (selector?: string): Selection;
+            (selector: string): Selection;
             /**
             * Selects the specified node
             *
             * @param element Node element to select
             */
-            (element?: EventTarget): Selection;
+            (element: EventTarget): Selection;
         };
 
         /**