Bump to v3.10.0.

math/ceil.js

@@ -0,0 +1,25 @@
+import createRound from '../internal/createRound';
+
+/**
+ * Calculates `n` rounded up to `precision`.
+ *
+ * @static
+ * @memberOf _
+ * @category Math
+ * @param {number} n The number to round up.
+ * @param {number} [precision=0] The precision to round up to.
+ * @returns {number} Returns the rounded up number.
+ * @example
+ *
+ * _.ceil(4.006);
+ * // => 5
+ *
+ * _.ceil(6.004, 2);
+ * // => 6.01
+ *
+ * _.ceil(6040, -2);
+ * // => 6100
+ */
+var ceil = createRound('ceil');
+
+export default ceil;

math/floor.js

@@ -0,0 +1,25 @@
+import createRound from '../internal/createRound';
+
+/**
+ * Calculates `n` rounded down to `precision`.
+ *
+ * @static
+ * @memberOf _
+ * @category Math
+ * @param {number} n The number to round down.
+ * @param {number} [precision=0] The precision to round down to.
+ * @returns {number} Returns the rounded down number.
+ * @example
+ *
+ * _.floor(4.006);
+ * // => 4
+ *
+ * _.floor(0.046, 2);
+ * // => 0.04
+ *
+ * _.floor(4060, -2);
+ * // => 4000
+ */
+var floor = createRound('floor');
+
+export default floor;

math/round.js

@@ -0,0 +1,25 @@
+import createRound from '../internal/createRound';
+
+/**
+ * Calculates `n` rounded to `precision`.
+ *
+ * @static
+ * @memberOf _
+ * @category Math
+ * @param {number} n The number to round.
+ * @param {number} [precision=0] The precision to round to.
+ * @returns {number} Returns the rounded number.
+ * @example
+ *
+ * _.round(4.006);
+ * // => 4
+ *
+ * _.round(4.006, 2);
+ * // => 4.01
+ *
+ * _.round(4060, -2);
+ * // => 4100
+ */
+var round = createRound('round');
+
+export default round;

math/sum.js

@@ -39,13 +39,11 @@ import toIterable from '../internal/toIterable';
  */
 function sum(collection, iteratee, thisArg) {
   if (thisArg && isIterateeCall(collection, iteratee, thisArg)) {
-    iteratee = null;
+    iteratee = undefined;
   }
-  var noIteratee = iteratee == null;
-
-  iteratee = noIteratee ? iteratee : baseCallback(iteratee, thisArg, 3);
-  return noIteratee
-    ? arraySum(isArray(collection) ? collection : toIterable(collection))
+  iteratee = baseCallback(iteratee, thisArg, 3);
+  return iteratee.length == 1
+    ? arraySum(isArray(collection) ? collection : toIterable(collection), iteratee)
     : baseSum(collection, iteratee);
 }