From 481295dbd09dbf81d196dc77382f1b92f534de3f Mon Sep 17 00:00:00 2001
From: Jordan Harband <ljharb@gmail.com>
Date: Fri, 24 Jul 2015 21:22:47 -0700
Subject: [PATCH] Remove Number type coercion.

---
 index.js | 3 +--
 test.js  | 6 ------
 2 files changed, 1 insertion(+), 8 deletions(-)

diff --git a/index.js b/index.js
index fef1545..400e5d1 100644
--- a/index.js
+++ b/index.js
@@ -1,7 +1,6 @@
 'use strict';
 
-module.exports = function isNegativeZero(value) {
-	var number = Number(value);
+module.exports = function isNegativeZero(number) {
 	return number === 0 && (1 / number) === -Infinity;
 };
 
diff --git a/test.js b/test.js
index da2e262..18c3f7c 100644
--- a/test.js
+++ b/test.js
@@ -21,12 +21,6 @@ test('not negative zero', function (t) {
 	t.end();
 });
 
-test('things whose valueOf is negative zero', function (t) {
-	t.ok(isNegativeZero({ valueOf: function () { return -0; } }), 'object with valueOf of negative zero is negative zero');
-	t.ok(isNegativeZero('-0'), 'string negative zero is negative zero');
-	t.end();
-});
-
 test('negative zero', function (t) {
 	t.ok(isNegativeZero(-0), 'negative zero is negative zero');
 	t.end();