Bump to v4.0.0.

max.js

@@ -0,0 +1,28 @@
+import baseExtremum from './internal/baseExtremum';
+import gt from './gt';
+import identity from './identity';
+
+/**
+ * Computes the maximum value of `array`. If `array` is empty or falsey
+ * `undefined` is returned.
+ *
+ * @static
+ * @memberOf _
+ * @category Math
+ * @param {Array} array The array to iterate over.
+ * @returns {*} Returns the maximum value.
+ * @example
+ *
+ * _.max([4, 2, 8, 6]);
+ * // => 8
+ *
+ * _.max([]);
+ * // => undefined
+ */
+function max(array) {
+  return (array && array.length)
+    ? baseExtremum(array, identity, gt)
+    : undefined;
+}
+
+export default max;