Another update from ingydotnet^djgoku

Task/Singly-linked-list-Traversal/JavaScript/singly-linked-list-traversal-2.js

@@ -0,0 +1,46 @@
+var map = function (fn, list) {
+        return list.map(fn);
+    },
+
+    foldr = function (fn, acc, list) {
+        var listr = list.slice();
+        listr.reverse();
+
+        return listr.reduce(fn, acc);
+    },
+
+    traverse = function (list, fn) {
+        return list.forEach(fn);
+    };
+
+var range = function (m, n) {
+    return Array.apply(null, Array(n - m + 1)).map(
+        function (x, i) {
+            return m + i;
+        }
+    );
+};
+
+//      --> [false, false, false, false, false, true, true, true, true, true]
+map(function (x) {
+    return x > 5;
+}, range(1, 10));
+
+//      --> ["Apples", "Oranges", "Mangos", "Pears"]
+map(function (x) {
+    return x + 's';
+}, ["Apple", "Orange", "Mango", "Pear"])
+
+//      --> 55
+foldr(function (acc, x) {
+    return acc + x;
+}, 0, range(1, 10))
+
+
+traverse(["Apple", "Orange", "Mango", "Pear"], function (x) {
+    console.log(x);
+})
+/* Apple */
+/* Orange */
+/* Mango */
+/* Pear */