Bump to v4.0.0.

internal/parent.js

@@ -0,0 +1,16 @@
+define(['./baseSlice', '../get'], function(baseSlice, get) {
+
+  /**
+   * Gets the parent value at `path` of `object`.
+   *
+   * @private
+   * @param {Object} object The object to query.
+   * @param {Array} path The path to get the parent value of.
+   * @returns {*} Returns the parent value.
+   */
+  function parent(object, path) {
+    return path.length == 1 ? object : get(object, baseSlice(path, 0, -1));
+  }
+
+  return parent;
+});