Bump to v4.0.0.

internal/baseOrderBy.js

@@ -0,0 +1,33 @@
+define(['./arrayMap', './baseIteratee', './baseMap', './baseSortBy', './compareMultiple'], function(arrayMap, baseIteratee, baseMap, baseSortBy, compareMultiple) {
+
+  /**
+   * The base implementation of `_.orderBy` without param guards.
+   *
+   * @private
+   * @param {Array|Object} collection The collection to iterate over.
+   * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
+   * @param {string[]} orders The sort orders of `iteratees`.
+   * @returns {Array} Returns the new sorted array.
+   */
+  function baseOrderBy(collection, iteratees, orders) {
+    var index = -1,
+        toIteratee = baseIteratee;
+
+    iteratees = arrayMap(iteratees.length ? iteratees : Array(1), function(iteratee) {
+      return toIteratee(iteratee);
+    });
+
+    var result = baseMap(collection, function(value, key, collection) {
+      var criteria = arrayMap(iteratees, function(iteratee) {
+        return iteratee(value);
+      });
+      return { 'criteria': criteria, 'index': ++index, 'value': value };
+    });
+
+    return baseSortBy(result, function(object, other) {
+      return compareMultiple(object, other, orders);
+    });
+  }
+
+  return baseOrderBy;
+});