Bump to v4.0.0.

slice.js

@@ -0,0 +1,35 @@
+import baseSlice from './internal/baseSlice';
+import isIterateeCall from './internal/isIterateeCall';
+import toInteger from './toInteger';
+
+/**
+ * Creates a slice of `array` from `start` up to, but not including, `end`.
+ *
+ * **Note:** This method is used instead of [`Array#slice`](https://mdn.io/Array/slice)
+ * to ensure dense arrays are returned.
+ *
+ * @static
+ * @memberOf _
+ * @category Array
+ * @param {Array} array The array to slice.
+ * @param {number} [start=0] The start position.
+ * @param {number} [end=array.length] The end position.
+ * @returns {Array} Returns the slice of `array`.
+ */
+function slice(array, start, end) {
+  var length = array ? array.length : 0;
+  if (!length) {
+    return [];
+  }
+  if (end && typeof end != 'number' && isIterateeCall(array, start, end)) {
+    start = 0;
+    end = length;
+  }
+  else {
+    start = start == null ? 0 : toInteger(start);
+    end = end === undefined ? length : toInteger(end);
+  }
+  return baseSlice(array, start, end);
+}
+
+export default slice;