--- /dev/null
+var arrayMap = require('./arrayMap'),
+ baseCallback = require('./baseCallback'),
+ baseMap = require('./baseMap'),
+ baseSortBy = require('./baseSortBy'),
+ compareMultiple = require('./compareMultiple');
+
+/**
+ * The base implementation of `_.sortByOrder` without param guards.
+ *
+ * @private
+ * @param {Array|Object|string} collection The collection to iterate over.
+ * @param {Function[]|Object[]|string[]} iteratees The iteratees to sort by.
+ * @param {boolean[]} orders The sort orders of `iteratees`.
+ * @returns {Array} Returns the new sorted array.
+ */
+function baseSortByOrder(collection, iteratees, orders) {
+ var index = -1;
+
+ iteratees = arrayMap(iteratees, function(iteratee) { return baseCallback(iteratee); });
+
+ var result = baseMap(collection, function(value) {
+ 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);
+ });
+}
+
+module.exports = baseSortByOrder;