From 8805c46cc792ea32f2eda30a7776e663a0cef1b3 Mon Sep 17 00:00:00 2001
From: wtgtybhertgeghgtwtg <wtgtybhertgeghgtwtg@gmail.com>
Date: Sun, 10 Jun 2018 16:24:58 -0700
Subject: [PATCH] perf: drop `isobject` check (#14)

---
 package.json      | 3 ---
 src/getCertain.js | 5 +----
 2 files changed, 1 insertion(+), 7 deletions(-)

diff --git a/package.json b/package.json
index 3d30b81..645cdbd 100644
--- a/package.json
+++ b/package.json
@@ -6,9 +6,6 @@
   "bugs": {
     "url": "https://github.com/wtgtybhertgeghgtwtg/get-certain/issues"
   },
-  "dependencies": {
-    "isobject": "^3.0.1"
-  },
   "description": "Assert a Map has a given key and return the value for it.",
   "devDependencies": {
     "@babel/core": "^7.0.0-beta.46",
diff --git a/src/getCertain.js b/src/getCertain.js
index 78528e3..c5b50cb 100644
--- a/src/getCertain.js
+++ b/src/getCertain.js
@@ -1,6 +1,5 @@
 // @flow
 import assert from 'assert';
-import isobject from 'isobject';
 
 export default function getCertain<Key, Value>(
   map: Map<Key, Value>,
@@ -8,9 +7,7 @@ export default function getCertain<Key, Value>(
   message: string = '"map" does not have an entry for "key".',
 ): Value {
   assert(
-    isobject(map) &&
-      typeof map.get === 'function' &&
-      typeof map.has === 'function',
+    map && typeof map.get === 'function' && typeof map.has === 'function',
     // Or at least look like a Map.
     '"map" must be a Map.',
   );