Bump to v3.0.0.

object/keysIn.js

@@ -0,0 +1,61 @@
+define(['../lang/isArguments', '../lang/isArray', '../internal/isIndex', '../internal/isLength', '../lang/isObject', '../support'], function(isArguments, isArray, isIndex, isLength, isObject, support) {
+
+  /** Used for native method references. */
+  var objectProto = Object.prototype;
+
+  /** Used to check objects for own properties. */
+  var hasOwnProperty = objectProto.hasOwnProperty;
+
+  /**
+   * Creates an array of the own and inherited enumerable property names of `object`.
+   *
+   * **Note:** Non-object values are coerced to objects.
+   *
+   * @static
+   * @memberOf _
+   * @category Object
+   * @param {Object} object The object to inspect.
+   * @returns {Array} Returns the array of property names.
+   * @example
+   *
+   * function Foo() {
+   *   this.a = 1;
+   *   this.b = 2;
+   * }
+   *
+   * Foo.prototype.c = 3;
+   *
+   * _.keysIn(new Foo);
+   * // => ['a', 'b', 'c'] (iteration order is not guaranteed)
+   */
+  function keysIn(object) {
+    if (object == null) {
+      return [];
+    }
+    if (!isObject(object)) {
+      object = Object(object);
+    }
+    var length = object.length;
+    length = (length && isLength(length) &&
+      (isArray(object) || (support.nonEnumArgs && isArguments(object))) && length) || 0;
+
+    var Ctor = object.constructor,
+        index = -1,
+        isProto = typeof Ctor == 'function' && Ctor.prototype == object,
+        result = Array(length),
+        skipIndexes = length > 0;
+
+    while (++index < length) {
+      result[index] = (index + '');
+    }
+    for (var key in object) {
+      if (!(skipIndexes && isIndex(key, length)) &&
+          !(key == 'constructor' && (isProto || !hasOwnProperty.call(object, key)))) {
+        result.push(key);
+      }
+    }
+    return result;
+  }
+
+  return keysIn;
+});