1 files changed, 28 insertions, 0 deletions
diff --git a/node_modules/es5-ext/array/#/e-index-of.js b/node_modules/es5-ext/array/#/e-index-of.js
new file mode 100644
index 000000000..8b0701177
--- /dev/null
+++ b/node_modules/es5-ext/array/#/e-index-of.js
@@ -0,0 +1,28 @@
+"use strict";
+
+var numberIsNaN       = require("../../number/is-nan")
+  , toPosInt          = require("../../number/to-pos-integer")
+  , value             = require("../../object/valid-value")
+  , indexOf           = Array.prototype.indexOf
+  , objHasOwnProperty = Object.prototype.hasOwnProperty
+  , abs               = Math.abs
+  , floor             = Math.floor;
+
+module.exports = function (searchElement /*, fromIndex*/) {
+	var i, length, fromIndex, val;
+	if (!numberIsNaN(searchElement)) return indexOf.apply(this, arguments);
+
+	length = toPosInt(value(this).length);
+	fromIndex = arguments[1];
+	if (isNaN(fromIndex)) fromIndex = 0;
+	else if (fromIndex >= 0) fromIndex = floor(fromIndex);
+	else fromIndex = toPosInt(this.length) - floor(abs(fromIndex));
+
+	for (i = fromIndex; i < length; ++i) {
+		if (objHasOwnProperty.call(this, i)) {
+			val = this[i];
+			if (numberIsNaN(val)) return i; // Jslint: ignore
+		}
+	}
+	return -1;
+};