added whole system from ola4doc

sys/node_modules/es5-ext/array/#/clear.js

@@ -0,0 +1,12 @@
+// Inspired by Google Closure:
+// http://closure-library.googlecode.com/svn/docs/
+// closure_goog_array_array.js.html#goog.array.clear
+
+'use strict';
+
+var value = require('../../object/valid-value');
+
+module.exports = function () {
+	value(this).length = 0;
+	return this;
+};