added whole system from ola4doc

sys/node_modules/es5-ext/array/#/_compare-by-length.js

@@ -0,0 +1,9 @@
+// Used internally to sort array of lists by length
+
+'use strict';
+
+var toPosInt = require('../../number/to-pos-integer');
+
+module.exports = function (a, b) {
+	return toPosInt(a.length) - toPosInt(b.length);
+};