From de8e6d717443f97bf72d6d404c7e69f2bb3ff3a7 Mon Sep 17 00:00:00 2001
From: John-David Dalton <john.david.dalton@gmail.com>
Date: Sat, 19 Oct 2013 01:08:09 -0700
Subject: [PATCH] Add `_.create`.

---
 dist/lodash.compat.js         | 126 +++++++++++++++++++++-------------
 dist/lodash.compat.min.js     |  52 +++++++-------
 dist/lodash.js                | 126 +++++++++++++++++++++-------------
 dist/lodash.min.js            |  66 +++++++++---------
 dist/lodash.underscore.js     |  83 ++++++++++++++--------
 dist/lodash.underscore.min.js |  42 ++++++------
 lodash.js                     | 124 ++++++++++++++++++++-------------
 7 files changed, 364 insertions(+), 255 deletions(-)

diff --git a/dist/lodash.compat.js b/dist/lodash.compat.js
index 250513b7f..0ba5896f4 100644
--- a/dist/lodash.compat.js
+++ b/dist/lodash.compat.js
@@ -1263,7 +1263,7 @@
         // non `Object` object instances with different constructors are not equal
         if (ctorA != ctorB &&
               !(isFunction(ctorA) && ctorA instanceof ctorA && isFunction(ctorB) && ctorB instanceof ctorB) &&
-              (!nativeCreate || ('constructor' in a && 'constructor' in b))
+              ('constructor' in a && 'constructor' in b)
             ) {
           return false;
         }
@@ -1603,7 +1603,7 @@
           }
           if (this instanceof bound) {
             // ensure `new bound` is an instance of `func`
-            thisBinding = createObject(func.prototype);
+            thisBinding = create(func.prototype);
 
             // mimic the constructor's `return` behavior
             // http://es5.github.io/#x13.2.2
@@ -1665,28 +1665,6 @@
       );
     }
 
-    /**
-     * Creates a new object with the specified `prototype`.
-     *
-     * @private
-     * @param {Object} prototype The prototype object.
-     * @returns {Object} Returns the new object.
-     */
-    function createObject(prototype) {
-      return isObject(prototype) ? nativeCreate(prototype) : {};
-    }
-    // fallback for browsers without `Object.create`
-    if (!nativeCreate) {
-      createObject = function(prototype) {
-        if (isObject(prototype)) {
-          noop.prototype = prototype;
-          var result = new noop;
-          noop.prototype = null;
-        }
-        return result || {};
-      };
-    }
-
     /**
      * Used by `escape` to convert characters to HTML entities.
      *
@@ -2076,6 +2054,50 @@
       return baseClone(value, true, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
     }
 
+    /**
+     * Creates a new object with the specified `prototype`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} prototype The prototype object.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
+     * }
+     *
+     * function Circle() {
+     *   Shape.call(this);
+     * }
+     *
+     * Circle.prototype = _.create(Shape.prototype);
+     * Circle.prototype.constructor = Circle;
+     *
+     * var circle = new Circle;
+     * circle instanceof Circle
+     * // => true
+     *
+     * circle instanceof Shape
+     * // => true
+     */
+    function create(prototype) {
+      return isObject(prototype) ? nativeCreate(prototype) : {};
+    }
+    // fallback for browsers without `Object.create`
+    if (!nativeCreate) {
+      create = function(prototype) {
+        if (isObject(prototype)) {
+          noop.prototype = prototype;
+          var result = new noop;
+          noop.prototype = null;
+        }
+        return result || {};
+      };
+    }
+
     /**
      * Assigns own enumerable properties of source object(s) to the destination
      * object for all destination properties that resolve to `undefined`. Once a
@@ -2220,18 +2242,20 @@
      * @returns {Object} Returns `object`.
      * @example
      *
-     * function Dog(name) {
-     *   this.name = name;
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
      * }
      *
-     * Dog.prototype.bark = function() {
-     *   console.log('Woof, woof!');
+     * Shape.prototype.move = function(x, y) {
+     *   this.x += x;
+     *   this.y += y;
      * };
      *
-     * _.forIn(new Dog('Dagny'), function(value, key) {
+     * _.forIn(new Shape, function(value, key) {
      *   console.log(key);
      * });
-     * // => logs 'bark' and 'name' (property order is not guaranteed across environments)
+     * // => logs 'x', 'y', and 'move' (property order is not guaranteed across environments)
      */
     var forIn = createIterator(eachIteratorOptions, forOwnIteratorOptions, {
       'useHas': false
@@ -2250,18 +2274,20 @@
      * @returns {Object} Returns `object`.
      * @example
      *
-     * function Dog(name) {
-     *   this.name = name;
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
      * }
      *
-     * Dog.prototype.bark = function() {
-     *   console.log('Woof, woof!');
+     * Shape.prototype.move = function(x, y) {
+     *   this.x += x;
+     *   this.y += y;
      * };
      *
-     * _.forInRight(new Dog('Dagny'), function(value, key) {
+     * _.forInRight(new Shape, function(value, key) {
      *   console.log(key);
      * });
-     * // => logs 'name' and 'bark' assuming `_.forIn ` logs 'bark' and 'name'
+     * // => logs 'move', 'y', and 'x' assuming `_.forIn ` logs 'x', 'y', and 'move'
      */
     function forInRight(object, callback, thisArg) {
       var pairs = [];
@@ -2703,18 +2729,18 @@
      * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
      * @example
      *
-     * function Person(name, age) {
-     *   this.name = name;
-     *   this.age = age;
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
      * }
      *
-     * _.isPlainObject(new Person('fred', 40));
+     * _.isPlainObject(new Shape);
      * // => false
      *
      * _.isPlainObject([1, 2, 3]);
      * // => false
      *
-     * _.isPlainObject({ 'name': 'fred', 'age': 40 });
+     * _.isPlainObject({ 'x': 0, 'y': 0 });
      * // => true
      */
     var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) {
@@ -2998,7 +3024,7 @@
      * @static
      * @memberOf _
      * @category Objects
-     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Array|Object} object The object to iterate over.
      * @param {Function} [callback=identity] The function called per iteration.
      * @param {*} [accumulator] The custom accumulator value.
      * @param {*} [thisArg] The `this` binding of `callback`.
@@ -3020,8 +3046,6 @@
      */
     function transform(object, callback, accumulator, thisArg) {
       var isArr = isArray(object);
-      callback = baseCreateCallback(callback, thisArg, 4);
-
       if (accumulator == null) {
         if (isArr) {
           accumulator = [];
@@ -3029,12 +3053,15 @@
           var ctor = object && object.constructor,
               proto = ctor && ctor.prototype;
 
-          accumulator = createObject(proto);
+          accumulator = create(proto);
         }
       }
-      (isArr ? baseEach : forOwn)(object, function(value, index, object) {
-        return callback(accumulator, value, index, object);
-      });
+      if (callback) {
+        callback = baseCreateCallback(callback, thisArg, 4);
+        (isArr ? baseEach : forOwn)(object, function(value, index, object) {
+          return callback(accumulator, value, index, object);
+        });
+      }
       return accumulator;
     }
 
@@ -6036,7 +6063,7 @@
      * // => 8
      */
     var parseInt = nativeParseInt(whitespace + '08') == 8 ? nativeParseInt : function(value, radix) {
-      // Firefox and Opera still follow the ES3 specified implementation of `parseInt`
+      // Firefox < 21 and Opera < 15 follow the ES3 specified implementation of `parseInt`
       return nativeParseInt(isString(value) ? value.replace(reLeadingSpacesAndZeros, '') : value, radix || 0);
     };
 
@@ -6528,6 +6555,7 @@
     lodash.compact = compact;
     lodash.compose = compose;
     lodash.countBy = countBy;
+    lodash.create = create;
     lodash.createCallback = createCallback;
     lodash.curry = curry;
     lodash.debounce = debounce;
diff --git a/dist/lodash.compat.min.js b/dist/lodash.compat.min.js
index 32d2f1d18..53acb1c42 100644
--- a/dist/lodash.compat.min.js
+++ b/dist/lodash.compat.min.js
@@ -8,47 +8,47 @@
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diff --git a/dist/lodash.js b/dist/lodash.js
index ded54e4a5..e23630c42 100644
--- a/dist/lodash.js
+++ b/dist/lodash.js
@@ -987,7 +987,7 @@
         // non `Object` object instances with different constructors are not equal
         if (ctorA != ctorB &&
               !(isFunction(ctorA) && ctorA instanceof ctorA && isFunction(ctorB) && ctorB instanceof ctorB) &&
-              (!nativeCreate || ('constructor' in a && 'constructor' in b))
+              ('constructor' in a && 'constructor' in b)
             ) {
           return false;
         }
@@ -1327,7 +1327,7 @@
           }
           if (this instanceof bound) {
             // ensure `new bound` is an instance of `func`
-            thisBinding = createObject(func.prototype);
+            thisBinding = create(func.prototype);
 
             // mimic the constructor's `return` behavior
             // http://es5.github.io/#x13.2.2
@@ -1341,28 +1341,6 @@
       return bound;
     }
 
-    /**
-     * Creates a new object with the specified `prototype`.
-     *
-     * @private
-     * @param {Object} prototype The prototype object.
-     * @returns {Object} Returns the new object.
-     */
-    function createObject(prototype) {
-      return isObject(prototype) ? nativeCreate(prototype) : {};
-    }
-    // fallback for browsers without `Object.create`
-    if (!nativeCreate) {
-      createObject = function(prototype) {
-        if (isObject(prototype)) {
-          noop.prototype = prototype;
-          var result = new noop;
-          noop.prototype = null;
-        }
-        return result || {};
-      };
-    }
-
     /**
      * Used by `escape` to convert characters to HTML entities.
      *
@@ -1702,6 +1680,50 @@
       return baseClone(value, true, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
     }
 
+    /**
+     * Creates a new object with the specified `prototype`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} prototype The prototype object.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
+     * }
+     *
+     * function Circle() {
+     *   Shape.call(this);
+     * }
+     *
+     * Circle.prototype = _.create(Shape.prototype);
+     * Circle.prototype.constructor = Circle;
+     *
+     * var circle = new Circle;
+     * circle instanceof Circle
+     * // => true
+     *
+     * circle instanceof Shape
+     * // => true
+     */
+    function create(prototype) {
+      return isObject(prototype) ? nativeCreate(prototype) : {};
+    }
+    // fallback for browsers without `Object.create`
+    if (!nativeCreate) {
+      create = function(prototype) {
+        if (isObject(prototype)) {
+          noop.prototype = prototype;
+          var result = new noop;
+          noop.prototype = null;
+        }
+        return result || {};
+      };
+    }
+
     /**
      * Assigns own enumerable properties of source object(s) to the destination
      * object for all destination properties that resolve to `undefined`. Once a
@@ -1866,18 +1888,20 @@
      * @returns {Object} Returns `object`.
      * @example
      *
-     * function Dog(name) {
-     *   this.name = name;
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
      * }
      *
-     * Dog.prototype.bark = function() {
-     *   console.log('Woof, woof!');
+     * Shape.prototype.move = function(x, y) {
+     *   this.x += x;
+     *   this.y += y;
      * };
      *
-     * _.forIn(new Dog('Dagny'), function(value, key) {
+     * _.forIn(new Shape, function(value, key) {
      *   console.log(key);
      * });
-     * // => logs 'bark' and 'name' (property order is not guaranteed across environments)
+     * // => logs 'x', 'y', and 'move' (property order is not guaranteed across environments)
      */
     var forIn = function(collection, callback, thisArg) {
       var index, iterable = collection, result = iterable;
@@ -1903,18 +1927,20 @@
      * @returns {Object} Returns `object`.
      * @example
      *
-     * function Dog(name) {
-     *   this.name = name;
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
      * }
      *
-     * Dog.prototype.bark = function() {
-     *   console.log('Woof, woof!');
+     * Shape.prototype.move = function(x, y) {
+     *   this.x += x;
+     *   this.y += y;
      * };
      *
-     * _.forInRight(new Dog('Dagny'), function(value, key) {
+     * _.forInRight(new Shape, function(value, key) {
      *   console.log(key);
      * });
-     * // => logs 'name' and 'bark' assuming `_.forIn ` logs 'bark' and 'name'
+     * // => logs 'move', 'y', and 'x' assuming `_.forIn ` logs 'x', 'y', and 'move'
      */
     function forInRight(object, callback, thisArg) {
       var pairs = [];
@@ -2363,18 +2389,18 @@
      * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
      * @example
      *
-     * function Person(name, age) {
-     *   this.name = name;
-     *   this.age = age;
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
      * }
      *
-     * _.isPlainObject(new Person('fred', 40));
+     * _.isPlainObject(new Shape);
      * // => false
      *
      * _.isPlainObject([1, 2, 3]);
      * // => false
      *
-     * _.isPlainObject({ 'name': 'fred', 'age': 40 });
+     * _.isPlainObject({ 'x': 0, 'y': 0 });
      * // => true
      */
     var isPlainObject = function(value) {
@@ -2658,7 +2684,7 @@
      * @static
      * @memberOf _
      * @category Objects
-     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Array|Object} object The object to iterate over.
      * @param {Function} [callback=identity] The function called per iteration.
      * @param {*} [accumulator] The custom accumulator value.
      * @param {*} [thisArg] The `this` binding of `callback`.
@@ -2680,8 +2706,6 @@
      */
     function transform(object, callback, accumulator, thisArg) {
       var isArr = isArray(object);
-      callback = baseCreateCallback(callback, thisArg, 4);
-
       if (accumulator == null) {
         if (isArr) {
           accumulator = [];
@@ -2689,12 +2713,15 @@
           var ctor = object && object.constructor,
               proto = ctor && ctor.prototype;
 
-          accumulator = createObject(proto);
+          accumulator = create(proto);
         }
       }
-      (isArr ? forEach : forOwn)(object, function(value, index, object) {
-        return callback(accumulator, value, index, object);
-      });
+      if (callback) {
+        callback = baseCreateCallback(callback, thisArg, 4);
+        (isArr ? forEach : forOwn)(object, function(value, index, object) {
+          return callback(accumulator, value, index, object);
+        });
+      }
       return accumulator;
     }
 
@@ -5697,7 +5724,7 @@
      * // => 8
      */
     var parseInt = nativeParseInt(whitespace + '08') == 8 ? nativeParseInt : function(value, radix) {
-      // Firefox and Opera still follow the ES3 specified implementation of `parseInt`
+      // Firefox < 21 and Opera < 15 follow the ES3 specified implementation of `parseInt`
       return nativeParseInt(isString(value) ? value.replace(reLeadingSpacesAndZeros, '') : value, radix || 0);
     };
 
@@ -6189,6 +6216,7 @@
     lodash.compact = compact;
     lodash.compose = compose;
     lodash.countBy = countBy;
+    lodash.create = create;
     lodash.createCallback = createCallback;
     lodash.curry = curry;
     lodash.debounce = debounce;
diff --git a/dist/lodash.min.js b/dist/lodash.min.js
index 27c3830a6..31d15731a 100644
--- a/dist/lodash.min.js
+++ b/dist/lodash.min.js
@@ -5,50 +5,50 @@
  */
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diff --git a/dist/lodash.underscore.js b/dist/lodash.underscore.js
index a17b5f79e..0ba7bc3df 100644
--- a/dist/lodash.underscore.js
+++ b/dist/lodash.underscore.js
@@ -715,7 +715,7 @@
         }
         if (this instanceof bound) {
           // ensure `new bound` is an instance of `func`
-          thisBinding = createObject(func.prototype);
+          thisBinding = create(func.prototype);
 
           // mimic the constructor's `return` behavior
           // http://es5.github.io/#x13.2.2
@@ -728,28 +728,6 @@
     return bound;
   }
 
-  /**
-   * Creates a new object with the specified `prototype`.
-   *
-   * @private
-   * @param {Object} prototype The prototype object.
-   * @returns {Object} Returns the new object.
-   */
-  function createObject(prototype) {
-    return isObject(prototype) ? nativeCreate(prototype) : {};
-  }
-  // fallback for browsers without `Object.create`
-  if (!nativeCreate) {
-    createObject = function(prototype) {
-      if (isObject(prototype)) {
-        noop.prototype = prototype;
-        var result = new noop;
-        noop.prototype = null;
-      }
-      return result || {};
-    };
-  }
-
   /**
    * Used by `escape` to convert characters to HTML entities.
    *
@@ -994,6 +972,50 @@
       : value;
   }
 
+  /**
+   * Creates a new object with the specified `prototype`.
+   *
+   * @static
+   * @memberOf _
+   * @category Objects
+   * @param {Object} prototype The prototype object.
+   * @returns {Object} Returns the new object.
+   * @example
+   *
+   * function Shape() {
+   *   this.x = 0;
+   *   this.y = 0;
+   * }
+   *
+   * function Circle() {
+   *   Shape.call(this);
+   * }
+   *
+   * Circle.prototype = _.create(Shape.prototype);
+   * Circle.prototype.constructor = Circle;
+   *
+   * var circle = new Circle;
+   * circle instanceof Circle
+   * // => true
+   *
+   * circle instanceof Shape
+   * // => true
+   */
+  function create(prototype) {
+    return isObject(prototype) ? nativeCreate(prototype) : {};
+  }
+  // fallback for browsers without `Object.create`
+  if (!nativeCreate) {
+    create = function(prototype) {
+      if (isObject(prototype)) {
+        noop.prototype = prototype;
+        var result = new noop;
+        noop.prototype = null;
+      }
+      return result || {};
+    };
+  }
+
   /**
    * Assigns own enumerable properties of source object(s) to the destination
    * object for all destination properties that resolve to `undefined`. Once a
@@ -1047,18 +1069,20 @@
    * @returns {Object} Returns `object`.
    * @example
    *
-   * function Dog(name) {
-   *   this.name = name;
+   * function Shape() {
+   *   this.x = 0;
+   *   this.y = 0;
    * }
    *
-   * Dog.prototype.bark = function() {
-   *   console.log('Woof, woof!');
+   * Shape.prototype.move = function(x, y) {
+   *   this.x += x;
+   *   this.y += y;
    * };
    *
-   * _.forIn(new Dog('Dagny'), function(value, key) {
+   * _.forIn(new Shape, function(value, key) {
    *   console.log(key);
    * });
-   * // => logs 'bark' and 'name' (property order is not guaranteed across environments)
+   * // => logs 'x', 'y', and 'move' (property order is not guaranteed across environments)
    */
   var forIn = function(collection, callback) {
     var index, iterable = collection, result = iterable;
@@ -4578,6 +4602,7 @@
   lodash.compact = compact;
   lodash.compose = compose;
   lodash.countBy = countBy;
+  lodash.create = create;
   lodash.debounce = debounce;
   lodash.defaults = defaults;
   lodash.defer = defer;
diff --git a/dist/lodash.underscore.min.js b/dist/lodash.underscore.min.js
index 7783c424e..7ede2f83a 100644
--- a/dist/lodash.underscore.min.js
+++ b/dist/lodash.underscore.min.js
@@ -4,35 +4,35 @@
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  */
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diff --git a/lodash.js b/lodash.js
index e484cb92b..d80a01a5f 100644
--- a/lodash.js
+++ b/lodash.js
@@ -1279,7 +1279,7 @@
         // non `Object` object instances with different constructors are not equal
         if (ctorA != ctorB &&
               !(isFunction(ctorA) && ctorA instanceof ctorA && isFunction(ctorB) && ctorB instanceof ctorB) &&
-              (!nativeCreate || ('constructor' in a && 'constructor' in b))
+              ('constructor' in a && 'constructor' in b)
             ) {
           return false;
         }
@@ -1619,7 +1619,7 @@
           }
           if (this instanceof bound) {
             // ensure `new bound` is an instance of `func`
-            thisBinding = createObject(func.prototype);
+            thisBinding = create(func.prototype);
 
             // mimic the constructor's `return` behavior
             // http://es5.github.io/#x13.2.2
@@ -1682,28 +1682,6 @@
       );
     }
 
-    /**
-     * Creates a new object with the specified `prototype`.
-     *
-     * @private
-     * @param {Object} prototype The prototype object.
-     * @returns {Object} Returns the new object.
-     */
-    function createObject(prototype) {
-      return isObject(prototype) ? nativeCreate(prototype) : {};
-    }
-    // fallback for browsers without `Object.create`
-    if (!nativeCreate) {
-      createObject = function(prototype) {
-        if (isObject(prototype)) {
-          noop.prototype = prototype;
-          var result = new noop;
-          noop.prototype = null;
-        }
-        return result || {};
-      };
-    }
-
     /**
      * Used by `escape` to convert characters to HTML entities.
      *
@@ -2093,6 +2071,50 @@
       return baseClone(value, true, typeof callback == 'function' && baseCreateCallback(callback, thisArg, 1));
     }
 
+    /**
+     * Creates a new object with the specified `prototype`.
+     *
+     * @static
+     * @memberOf _
+     * @category Objects
+     * @param {Object} prototype The prototype object.
+     * @returns {Object} Returns the new object.
+     * @example
+     *
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
+     * }
+     *
+     * function Circle() {
+     *   Shape.call(this);
+     * }
+     *
+     * Circle.prototype = _.create(Shape.prototype);
+     * Circle.prototype.constructor = Circle;
+     *
+     * var circle = new Circle;
+     * circle instanceof Circle
+     * // => true
+     *
+     * circle instanceof Shape
+     * // => true
+     */
+    function create(prototype) {
+      return isObject(prototype) ? nativeCreate(prototype) : {};
+    }
+    // fallback for browsers without `Object.create`
+    if (!nativeCreate) {
+      create = function(prototype) {
+        if (isObject(prototype)) {
+          noop.prototype = prototype;
+          var result = new noop;
+          noop.prototype = null;
+        }
+        return result || {};
+      };
+    }
+
     /**
      * Assigns own enumerable properties of source object(s) to the destination
      * object for all destination properties that resolve to `undefined`. Once a
@@ -2237,18 +2259,20 @@
      * @returns {Object} Returns `object`.
      * @example
      *
-     * function Dog(name) {
-     *   this.name = name;
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
      * }
      *
-     * Dog.prototype.bark = function() {
-     *   console.log('Woof, woof!');
+     * Shape.prototype.move = function(x, y) {
+     *   this.x += x;
+     *   this.y += y;
      * };
      *
-     * _.forIn(new Dog('Dagny'), function(value, key) {
+     * _.forIn(new Shape, function(value, key) {
      *   console.log(key);
      * });
-     * // => logs 'bark' and 'name' (property order is not guaranteed across environments)
+     * // => logs 'x', 'y', and 'move' (property order is not guaranteed across environments)
      */
     var forIn = createIterator(eachIteratorOptions, forOwnIteratorOptions, {
       'useHas': false
@@ -2267,18 +2291,20 @@
      * @returns {Object} Returns `object`.
      * @example
      *
-     * function Dog(name) {
-     *   this.name = name;
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
      * }
      *
-     * Dog.prototype.bark = function() {
-     *   console.log('Woof, woof!');
+     * Shape.prototype.move = function(x, y) {
+     *   this.x += x;
+     *   this.y += y;
      * };
      *
-     * _.forInRight(new Dog('Dagny'), function(value, key) {
+     * _.forInRight(new Shape, function(value, key) {
      *   console.log(key);
      * });
-     * // => logs 'name' and 'bark' assuming `_.forIn ` logs 'bark' and 'name'
+     * // => logs 'move', 'y', and 'x' assuming `_.forIn ` logs 'x', 'y', and 'move'
      */
     function forInRight(object, callback, thisArg) {
       var pairs = [];
@@ -2720,18 +2746,18 @@
      * @returns {boolean} Returns `true` if `value` is a plain object, else `false`.
      * @example
      *
-     * function Person(name, age) {
-     *   this.name = name;
-     *   this.age = age;
+     * function Shape() {
+     *   this.x = 0;
+     *   this.y = 0;
      * }
      *
-     * _.isPlainObject(new Person('fred', 40));
+     * _.isPlainObject(new Shape);
      * // => false
      *
      * _.isPlainObject([1, 2, 3]);
      * // => false
      *
-     * _.isPlainObject({ 'name': 'fred', 'age': 40 });
+     * _.isPlainObject({ 'x': 0, 'y': 0 });
      * // => true
      */
     var isPlainObject = !getPrototypeOf ? shimIsPlainObject : function(value) {
@@ -3015,7 +3041,7 @@
      * @static
      * @memberOf _
      * @category Objects
-     * @param {Array|Object} collection The collection to iterate over.
+     * @param {Array|Object} object The object to iterate over.
      * @param {Function} [callback=identity] The function called per iteration.
      * @param {*} [accumulator] The custom accumulator value.
      * @param {*} [thisArg] The `this` binding of `callback`.
@@ -3037,8 +3063,6 @@
      */
     function transform(object, callback, accumulator, thisArg) {
       var isArr = isArray(object);
-      callback = baseCreateCallback(callback, thisArg, 4);
-
       if (accumulator == null) {
         if (isArr) {
           accumulator = [];
@@ -3046,12 +3070,15 @@
           var ctor = object && object.constructor,
               proto = ctor && ctor.prototype;
 
-          accumulator = createObject(proto);
+          accumulator = create(proto);
         }
       }
-      (isArr ? baseEach : forOwn)(object, function(value, index, object) {
-        return callback(accumulator, value, index, object);
-      });
+      if (callback) {
+        callback = baseCreateCallback(callback, thisArg, 4);
+        (isArr ? baseEach : forOwn)(object, function(value, index, object) {
+          return callback(accumulator, value, index, object);
+        });
+      }
       return accumulator;
     }
 
@@ -6545,6 +6572,7 @@
     lodash.compact = compact;
     lodash.compose = compose;
     lodash.countBy = countBy;
+    lodash.create = create;
     lodash.createCallback = createCallback;
     lodash.curry = curry;
     lodash.debounce = debounce;