Initial import with skill sheet working

node_modules/for-each/index.js

@@ -0,0 +1,62 @@
+'use strict';
+
+var isCallable = require('is-callable');
+
+var toStr = Object.prototype.toString;
+var hasOwnProperty = Object.prototype.hasOwnProperty;
+
+var forEachArray = function forEachArray(array, iterator, receiver) {
+    for (var i = 0, len = array.length; i < len; i++) {
+        if (hasOwnProperty.call(array, i)) {
+            if (receiver == null) {
+                iterator(array[i], i, array);
+            } else {
+                iterator.call(receiver, array[i], i, array);
+            }
+        }
+    }
+};
+
+var forEachString = function forEachString(string, iterator, receiver) {
+    for (var i = 0, len = string.length; i < len; i++) {
+        // no such thing as a sparse string.
+        if (receiver == null) {
+            iterator(string.charAt(i), i, string);
+        } else {
+            iterator.call(receiver, string.charAt(i), i, string);
+        }
+    }
+};
+
+var forEachObject = function forEachObject(object, iterator, receiver) {
+    for (var k in object) {
+        if (hasOwnProperty.call(object, k)) {
+            if (receiver == null) {
+                iterator(object[k], k, object);
+            } else {
+                iterator.call(receiver, object[k], k, object);
+            }
+        }
+    }
+};
+
+var forEach = function forEach(list, iterator, thisArg) {
+    if (!isCallable(iterator)) {
+        throw new TypeError('iterator must be a function');
+    }
+
+    var receiver;
+    if (arguments.length >= 3) {
+        receiver = thisArg;
+    }
+
+    if (toStr.call(list) === '[object Array]') {
+        forEachArray(list, iterator, receiver);
+    } else if (typeof list === 'string') {
+        forEachString(list, iterator, receiver);
+    } else {
+        forEachObject(list, iterator, receiver);
+    }
+};
+
+module.exports = forEach;