Initial pass

node_modules/fast-deep-equal/index.js

@@ -0,0 +1,55 @@
+'use strict';
+
+var isArray = Array.isArray;
+var keyList = Object.keys;
+var hasProp = Object.prototype.hasOwnProperty;
+
+module.exports = function equal(a, b) {
+  if (a === b) return true;
+
+  if (a && b && typeof a == 'object' && typeof b == 'object') {
+    var arrA = isArray(a)
+      , arrB = isArray(b)
+      , i
+      , length
+      , key;
+
+    if (arrA && arrB) {
+      length = a.length;
+      if (length != b.length) return false;
+      for (i = length; i-- !== 0;)
+        if (!equal(a[i], b[i])) return false;
+      return true;
+    }
+
+    if (arrA != arrB) return false;
+
+    var dateA = a instanceof Date
+      , dateB = b instanceof Date;
+    if (dateA != dateB) return false;
+    if (dateA && dateB) return a.getTime() == b.getTime();
+
+    var regexpA = a instanceof RegExp
+      , regexpB = b instanceof RegExp;
+    if (regexpA != regexpB) return false;
+    if (regexpA && regexpB) return a.toString() == b.toString();
+
+    var keys = keyList(a);
+    length = keys.length;
+
+    if (length !== keyList(b).length)
+      return false;
+
+    for (i = length; i-- !== 0;)
+      if (!hasProp.call(b, keys[i])) return false;
+
+    for (i = length; i-- !== 0;) {
+      key = keys[i];
+      if (!equal(a[key], b[key])) return false;
+    }
+
+    return true;
+  }
+
+  return a!==a && b!==b;
+};