1 files changed, 48 insertions, 0 deletions

diff --git a/test/shims.js b/test/shims.js
new file mode 100644
index 0000000..a5ddafd
--- /dev/null
+++ b/test/shims.js
@@ -0,0 +1,48 @@
+// Taken from https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/indexOf#Compatibility
+if (!Array.prototype.indexOf) {
+    Array.prototype.indexOf = function (searchElement /*, fromIndex */ ) {
+        "use strict";
+        if (this == null) {
+            throw new TypeError();
+        }
+        var t = Object(this);
+        var len = t.length >>> 0;
+        if (len === 0) {
+            return -1;
+        }
+        var n = 0;
+        if (arguments.length > 0) {
+            n = Number(arguments[1]);
+            if (n != n) { // shortcut for verifying if it's NaN
+                n = 0;
+            } else if (n != 0 && n != Infinity && n != -Infinity) {
+                n = (n > 0 || -1) * Math.floor(Math.abs(n));
+            }
+        }
+        if (n >= len) {
+            return -1;
+        }
+        var k = n >= 0 ? n : Math.max(len - Math.abs(n), 0);
+        for (; k < len; k++) {
+            if (k in t && t[k] === searchElement) {
+                return k;
+            }
+        }
+        return -1;
+    };
+}
+
+
+// Taken from https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/trim#Compatibility
+if(!String.prototype.trim) {
+  String.prototype.trim = function () {
+    return this.replace(/^\s+|\s+$/g,'');
+  };
+}
+
+// Taken from https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/Array/isArray#Compatibility
+if(!Array.isArray) {
+  Array.isArray = function (vArg) {
+    return Object.prototype.toString.call(vArg) === "[object Array]";
+  };
+}
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