Update wmts-hidpi, add nicer-api-docs

nicer-api-docs/closure-library/closure/goog/labs/object/object.js

@@ -0,0 +1,46 @@
+// Copyright 2012 The Closure Library Authors. All Rights Reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS-IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+/**
+ * @fileoverview A labs location for functions destined for Closure's
+ * {@code goog.object} namespace.
+ */
+
+goog.provide('goog.labs.object');
+
+
+/**
+ * Whether two values are not observably distinguishable. This
+ * correctly detects that 0 is not the same as -0 and two NaNs are
+ * practically equivalent.
+ *
+ * The implementation is as suggested by harmony:egal proposal.
+ *
+ * @param {*} v The first value to compare.
+ * @param {*} v2 The second value to compare.
+ * @return {boolean} Whether two values are not observably distinguishable.
+ * @see http://wiki.ecmascript.org/doku.php?id=harmony:egal
+ */
+goog.labs.object.is = function(v, v2) {
+  if (v === v2) {
+    // 0 === -0, but they are not identical.
+    // We need the cast because the compiler requires that v2 is a
+    // number (although 1/v2 works with non-number). We cast to ? to
+    // stop the compiler from type-checking this statement.
+    return v !== 0 || 1 / v === 1 / /** @type {?} */ (v2);
+  }
+
+  // NaN is non-reflexive: NaN !== NaN, although they are identical.
+  return v !== v && v2 !== v2;
+};