Bump to v4.0.0.

internal/hashGet.js

@@ -0,0 +1,28 @@
+var nativeCreate = require('./nativeCreate');
+
+/** Used to stand-in for `undefined` hash values. */
+var HASH_UNDEFINED = '__lodash_hash_undefined__';
+
+/** Used for built-in method references. */
+var objectProto = global.Object.prototype;
+
+/** Used to check objects for own properties. */
+var hasOwnProperty = objectProto.hasOwnProperty;
+
+/**
+ * Gets the hash value for `key`.
+ *
+ * @private
+ * @param {Object} hash The hash to query.
+ * @param {string} key The key of the value to get.
+ * @returns {*} Returns the entry value.
+ */
+function hashGet(hash, key) {
+  if (nativeCreate) {
+    var result = hash[key];
+    return result === HASH_UNDEFINED ? undefined : result;
+  }
+  return hasOwnProperty.call(hash, key) ? hash[key] : undefined;
+}
+
+module.exports = hashGet;