Mojo JS Bindings: URL class

third_party/js/util.js

Index: third_party/js/util.js
diff --git a/third_party/js/util.js b/third_party/js/util.js
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+// Copyright Joyent, Inc. and other Node contributors.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a
+// copy of this software and associated documentation files (the
+// "Software"), to deal in the Software without restriction, including
+// without limitation the rights to use, copy, modify, merge, publish,
+// distribute, sublicense, and/or sell copies of the Software, and to permit
+// persons to whom the Software is furnished to do so, subject to the
+// following conditions:
+//
+// The above copyright notice and this permission notice shall be included
+// in all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+// OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN
+// NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+// DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+// OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+// USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+define("third_party/js/util", [
+], function() {
+
+// NOTE: These type checking functions intentionally don't use `instanceof`
+// because it is fragile and can be easily faked with `Object.create()`.
+
+function isBoolean(arg) {
+  return typeof arg === 'boolean';
+}
+
+function isNull(arg) {
+  return arg === null;
+}
+
+function isNullOrUndefined(arg) {
+  return arg == null;
+}
+
+function isNumber(arg) {
+  return typeof arg === 'number';
+}
+
+function isString(arg) {
+  return typeof arg === 'string';
+}
+
+function isObject(arg) {
+  return typeof arg === 'object' && arg !== null;
+}
+
+var exports = {};
+exports.isArray = Array.isArray;
+exports.isBoolean = isBoolean;
+exports.isNull = isNull;
+exports.isNullOrUndefined = isNullOrUndefined;
+exports.isNumber = isNumber;
+exports.isString = isString;
+exports.isObject = isObject;
+return exports;
+});