diff --git a/index.js b/index.js
index 8c2827a..c6d7d5d 100644
--- a/index.js
+++ b/index.js
@@ -4,12 +4,9 @@
  * Copyright(c) 2013 jake luer <jake@alogicalparadox.com>
  * MIT Licensed
  */
-var getPrototypeOfExists = typeof Object.getPrototypeOf === 'function';
 var promiseExists = typeof Promise === 'function';
 var globalObject = typeof window !== 'undefined' ? window : typeof global !== 'undefined' ? global : self; // eslint-disable-line
 var isDom = 'location' in globalObject && 'document' in globalObject;
-var htmlElementExists = typeof HTMLElement !== 'undefined';
-var isArrayExists = typeof Array.isArray === 'function';
 var symbolExists = typeof Symbol !== 'undefined';
 var mapExists = typeof Map !== 'undefined';
 var setExists = typeof Set !== 'undefined';
@@ -20,8 +17,8 @@ var symbolIteratorExists = symbolExists && typeof Symbol.iterator !== 'undefined
 var symbolToStringTagExists = symbolExists && typeof Symbol.toStringTag !== 'undefined';
 var setEntriesExists = setExists && typeof Set.prototype.entries === 'function';
 var mapEntriesExists = mapExists && typeof Map.prototype.entries === 'function';
-var setIteratorPrototype = getPrototypeOfExists && setEntriesExists && Object.getPrototypeOf(new Set().entries());
-var mapIteratorPrototype = getPrototypeOfExists && mapEntriesExists && Object.getPrototypeOf(new Map().entries());
+var setIteratorPrototype = setEntriesExists && Object.getPrototypeOf(new Set().entries());
+var mapIteratorPrototype = mapEntriesExists && Object.getPrototypeOf(new Map().entries());
 var arrayIteratorExists = symbolIteratorExists && typeof Array.prototype[Symbol.iterator] === 'function';
 var arrayIteratorPrototype = arrayIteratorExists && Object.getPrototypeOf([][Symbol.iterator]());
 var stringIteratorExists = symbolIteratorExists && typeof Array.prototype[Symbol.iterator] === 'function';
@@ -94,7 +91,7 @@ module.exports = function typeDetect(obj) {
    * Post:
    *   array literal      x 22,479,650 ops/sec ±0.96% (81 runs sampled)
    */
-  if (isArrayExists && Array.isArray(obj)) {
+  if (Array.isArray(obj)) {
     return 'Array';
   }
 
@@ -159,7 +156,7 @@ module.exports = function typeDetect(obj) {
      * Test: `Object.prototype.toString.call(document.createElement('blockquote'))``
      *  - IE <=10 === "[object HTMLBlockElement]"
      */
-    if (htmlElementExists && obj instanceof HTMLElement && obj.tagName === 'BLOCKQUOTE') {
+    if (obj instanceof HTMLElement && obj.tagName === 'BLOCKQUOTE') {
       return 'HTMLQuoteElement';
     }
 
@@ -175,7 +172,7 @@ module.exports = function typeDetect(obj) {
      *  - Firefox === "[object HTMLTableCellElement]"
      *  - Safari === "[object HTMLTableCellElement]"
      */
-    if (htmlElementExists && obj instanceof HTMLElement && obj.tagName === 'TD') {
+    if (obj instanceof HTMLElement && obj.tagName === 'TD') {
       return 'HTMLTableDataCellElement';
     }
 
@@ -191,7 +188,7 @@ module.exports = function typeDetect(obj) {
      *  - Firefox === "[object HTMLTableCellElement]"
      *  - Safari === "[object HTMLTableCellElement]"
      */
-    if (htmlElementExists && obj instanceof HTMLElement && obj.tagName === 'TH') {
+    if (obj instanceof HTMLElement && obj.tagName === 'TH') {
       return 'HTMLTableHeaderCellElement';
     }
   }
@@ -223,142 +220,140 @@ module.exports = function typeDetect(obj) {
     return stringTag;
   }
 
-  if (getPrototypeOfExists) {
-    var objPrototype = Object.getPrototypeOf(obj);
-    /* ! Speed optimisation
-    * Pre:
-    *   regex literal      x 1,772,385 ops/sec ±1.85% (77 runs sampled)
-    *   regex constructor  x 2,143,634 ops/sec ±2.46% (78 runs sampled)
-    * Post:
-    *   regex literal      x 3,928,009 ops/sec ±0.65% (78 runs sampled)
-    *   regex constructor  x 3,931,108 ops/sec ±0.58% (84 runs sampled)
-    */
-    if (objPrototype === RegExp.prototype) {
-      return 'RegExp';
-    }
+  var objPrototype = Object.getPrototypeOf(obj);
+  /* ! Speed optimisation
+  * Pre:
+  *   regex literal      x 1,772,385 ops/sec ±1.85% (77 runs sampled)
+  *   regex constructor  x 2,143,634 ops/sec ±2.46% (78 runs sampled)
+  * Post:
+  *   regex literal      x 3,928,009 ops/sec ±0.65% (78 runs sampled)
+  *   regex constructor  x 3,931,108 ops/sec ±0.58% (84 runs sampled)
+  */
+  if (objPrototype === RegExp.prototype) {
+    return 'RegExp';
+  }
 
-    /* ! Speed optimisation
-    * Pre:
-    *   date               x 2,130,074 ops/sec ±4.42% (68 runs sampled)
-    * Post:
-    *   date               x 3,953,779 ops/sec ±1.35% (77 runs sampled)
-    */
-    if (objPrototype === Date.prototype) {
-      return 'Date';
-    }
+  /* ! Speed optimisation
+  * Pre:
+  *   date               x 2,130,074 ops/sec ±4.42% (68 runs sampled)
+  * Post:
+  *   date               x 3,953,779 ops/sec ±1.35% (77 runs sampled)
+  */
+  if (objPrototype === Date.prototype) {
+    return 'Date';
+  }
 
-    /* ! Spec Conformance
-     * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise.prototype-@@tostringtag)
-     * ES6$25.4.5.4 - Promise.prototype[@@toStringTag] should be "Promise":
-     * Test: `Object.prototype.toString.call(Promise.resolve())``
-     *  - Chrome <=47 === "[object Object]"
-     *  - Edge <=20 === "[object Object]"
-     *  - Firefox 29-Latest === "[object Promise]"
-     *  - Safari 7.1-Latest === "[object Promise]"
-     */
-    if (promiseExists && objPrototype === Promise.prototype) {
-      return 'Promise';
-    }
+  /* ! Spec Conformance
+   * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-promise.prototype-@@tostringtag)
+   * ES6$25.4.5.4 - Promise.prototype[@@toStringTag] should be "Promise":
+   * Test: `Object.prototype.toString.call(Promise.resolve())``
+   *  - Chrome <=47 === "[object Object]"
+   *  - Edge <=20 === "[object Object]"
+   *  - Firefox 29-Latest === "[object Promise]"
+   *  - Safari 7.1-Latest === "[object Promise]"
+   */
+  if (promiseExists && objPrototype === Promise.prototype) {
+    return 'Promise';
+  }
 
-    /* ! Speed optimisation
-    * Pre:
-    *   set                x 2,222,186 ops/sec ±1.31% (82 runs sampled)
-    * Post:
-    *   set                x 4,545,879 ops/sec ±1.13% (83 runs sampled)
-    */
-    if (setExists && objPrototype === Set.prototype) {
-      return 'Set';
-    }
+  /* ! Speed optimisation
+  * Pre:
+  *   set                x 2,222,186 ops/sec ±1.31% (82 runs sampled)
+  * Post:
+  *   set                x 4,545,879 ops/sec ±1.13% (83 runs sampled)
+  */
+  if (setExists && objPrototype === Set.prototype) {
+    return 'Set';
+  }
 
-    /* ! Speed optimisation
-    * Pre:
-    *   map                x 2,396,842 ops/sec ±1.59% (81 runs sampled)
-    * Post:
-    *   map                x 4,183,945 ops/sec ±6.59% (82 runs sampled)
-    */
-    if (mapExists && objPrototype === Map.prototype) {
-      return 'Map';
-    }
+  /* ! Speed optimisation
+  * Pre:
+  *   map                x 2,396,842 ops/sec ±1.59% (81 runs sampled)
+  * Post:
+  *   map                x 4,183,945 ops/sec ±6.59% (82 runs sampled)
+  */
+  if (mapExists && objPrototype === Map.prototype) {
+    return 'Map';
+  }
 
-    /* ! Speed optimisation
-    * Pre:
-    *   weakset            x 1,323,220 ops/sec ±2.17% (76 runs sampled)
-    * Post:
-    *   weakset            x 4,237,510 ops/sec ±2.01% (77 runs sampled)
-    */
-    if (weakSetExists && objPrototype === WeakSet.prototype) {
-      return 'WeakSet';
-    }
+  /* ! Speed optimisation
+  * Pre:
+  *   weakset            x 1,323,220 ops/sec ±2.17% (76 runs sampled)
+  * Post:
+  *   weakset            x 4,237,510 ops/sec ±2.01% (77 runs sampled)
+  */
+  if (weakSetExists && objPrototype === WeakSet.prototype) {
+    return 'WeakSet';
+  }
 
-    /* ! Speed optimisation
-    * Pre:
-    *   weakmap            x 1,500,260 ops/sec ±2.02% (78 runs sampled)
-    * Post:
-    *   weakmap            x 3,881,384 ops/sec ±1.45% (82 runs sampled)
-    */
-    if (weakMapExists && objPrototype === WeakMap.prototype) {
-      return 'WeakMap';
-    }
+  /* ! Speed optimisation
+  * Pre:
+  *   weakmap            x 1,500,260 ops/sec ±2.02% (78 runs sampled)
+  * Post:
+  *   weakmap            x 3,881,384 ops/sec ±1.45% (82 runs sampled)
+  */
+  if (weakMapExists && objPrototype === WeakMap.prototype) {
+    return 'WeakMap';
+  }
 
-    /* ! Spec Conformance
-     * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-dataview.prototype-@@tostringtag)
-     * ES6$24.2.4.21 - DataView.prototype[@@toStringTag] should be "DataView":
-     * Test: `Object.prototype.toString.call(new DataView(new ArrayBuffer(1)))``
-     *  - Edge <=13 === "[object Object]"
-     */
-    if (dataViewExists && objPrototype === DataView.prototype) {
-      return 'DataView';
-    }
+  /* ! Spec Conformance
+   * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-dataview.prototype-@@tostringtag)
+   * ES6$24.2.4.21 - DataView.prototype[@@toStringTag] should be "DataView":
+   * Test: `Object.prototype.toString.call(new DataView(new ArrayBuffer(1)))``
+   *  - Edge <=13 === "[object Object]"
+   */
+  if (dataViewExists && objPrototype === DataView.prototype) {
+    return 'DataView';
+  }
 
-    /* ! Spec Conformance
-     * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%mapiteratorprototype%-@@tostringtag)
-     * ES6$23.1.5.2.2 - %MapIteratorPrototype%[@@toStringTag] should be "Map Iterator":
-     * Test: `Object.prototype.toString.call(new Map().entries())``
-     *  - Edge <=13 === "[object Object]"
-     */
-    if (mapExists && objPrototype === mapIteratorPrototype) {
-      return 'Map Iterator';
-    }
+  /* ! Spec Conformance
+   * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%mapiteratorprototype%-@@tostringtag)
+   * ES6$23.1.5.2.2 - %MapIteratorPrototype%[@@toStringTag] should be "Map Iterator":
+   * Test: `Object.prototype.toString.call(new Map().entries())``
+   *  - Edge <=13 === "[object Object]"
+   */
+  if (mapExists && objPrototype === mapIteratorPrototype) {
+    return 'Map Iterator';
+  }
 
-    /* ! Spec Conformance
-     * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%setiteratorprototype%-@@tostringtag)
-     * ES6$23.2.5.2.2 - %SetIteratorPrototype%[@@toStringTag] should be "Set Iterator":
-     * Test: `Object.prototype.toString.call(new Set().entries())``
-     *  - Edge <=13 === "[object Object]"
-     */
-    if (setExists && objPrototype === setIteratorPrototype) {
-      return 'Set Iterator';
-    }
+  /* ! Spec Conformance
+   * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%setiteratorprototype%-@@tostringtag)
+   * ES6$23.2.5.2.2 - %SetIteratorPrototype%[@@toStringTag] should be "Set Iterator":
+   * Test: `Object.prototype.toString.call(new Set().entries())``
+   *  - Edge <=13 === "[object Object]"
+   */
+  if (setExists && objPrototype === setIteratorPrototype) {
+    return 'Set Iterator';
+  }
 
-    /* ! Spec Conformance
-     * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%arrayiteratorprototype%-@@tostringtag)
-     * ES6$22.1.5.2.2 - %ArrayIteratorPrototype%[@@toStringTag] should be "Array Iterator":
-     * Test: `Object.prototype.toString.call([][Symbol.iterator]())``
-     *  - Edge <=13 === "[object Object]"
-     */
-    if (arrayIteratorExists && objPrototype === arrayIteratorPrototype) {
-      return 'Array Iterator';
-    }
+  /* ! Spec Conformance
+   * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%arrayiteratorprototype%-@@tostringtag)
+   * ES6$22.1.5.2.2 - %ArrayIteratorPrototype%[@@toStringTag] should be "Array Iterator":
+   * Test: `Object.prototype.toString.call([][Symbol.iterator]())``
+   *  - Edge <=13 === "[object Object]"
+   */
+  if (arrayIteratorExists && objPrototype === arrayIteratorPrototype) {
+    return 'Array Iterator';
+  }
 
-    /* ! Spec Conformance
-     * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%stringiteratorprototype%-@@tostringtag)
-     * ES6$21.1.5.2.2 - %StringIteratorPrototype%[@@toStringTag] should be "String Iterator":
-     * Test: `Object.prototype.toString.call(''[Symbol.iterator]())``
-     *  - Edge <=13 === "[object Object]"
-     */
-    if (stringIteratorExists && objPrototype === stringIteratorPrototype) {
-      return 'String Iterator';
-    }
+  /* ! Spec Conformance
+   * (http://www.ecma-international.org/ecma-262/6.0/index.html#sec-%stringiteratorprototype%-@@tostringtag)
+   * ES6$21.1.5.2.2 - %StringIteratorPrototype%[@@toStringTag] should be "String Iterator":
+   * Test: `Object.prototype.toString.call(''[Symbol.iterator]())``
+   *  - Edge <=13 === "[object Object]"
+   */
+  if (stringIteratorExists && objPrototype === stringIteratorPrototype) {
+    return 'String Iterator';
+  }
 
-    /* ! Speed optimisation
-    * Pre:
-    *   object from null   x 2,424,320 ops/sec ±1.67% (76 runs sampled)
-    * Post:
-    *   object from null   x 5,838,000 ops/sec ±0.99% (84 runs sampled)
-    */
-    if (objPrototype === null) {
-      return 'Object';
-    }
+  /* ! Speed optimisation
+  * Pre:
+  *   object from null   x 2,424,320 ops/sec ±1.67% (76 runs sampled)
+  * Post:
+  *   object from null   x 5,838,000 ops/sec ±0.99% (84 runs sampled)
+  */
+  if (objPrototype === null) {
+    return 'Object';
   }
 
   return Object