--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/toolkit/javascript/d3/src/core/last.js	Thu Apr 10 14:20:23 2014 +0200
@@ -0,0 +1,13 @@
+d3.last = function(array, f) {
+  var i = 0,
+      n = array.length,
+      a = array[0],
+      b;
+  if (arguments.length === 1) f = d3.ascending;
+  while (++i < n) {
+    if (f.call(array, a, b = array[i]) <= 0) {
+      a = b;
+    }
+  }
+  return a;
+};