Bump to v4.3.1.

lodash.upperfirst/README.md

@@ -1,4 +1,4 @@
-# lodash.upperfirst v4.3.0
+# lodash.upperfirst v4.3.1
 
 The [lodash](https://lodash.com/) method `_.upperFirst` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -15,4 +15,4 @@ In Node.js:
 var upperFirst = require('lodash.upperfirst');
 ```
 
-See the [documentation](https://lodash.com/docs#upperFirst) or [package source](https://github.com/lodash/lodash/blob/4.3.0-npm-packages/lodash.upperfirst) for more details.
+See the [documentation](https://lodash.com/docs#upperFirst) or [package source](https://github.com/lodash/lodash/blob/4.3.1-npm-packages/lodash.upperfirst) for more details.

lodash.upperfirst/index.js

@@ -37,10 +37,10 @@ var reOptMod = rsModifier + '?',
     rsSymbol = '(?:' + [rsNonAstral + rsCombo + '?', rsCombo, rsRegional, rsSurrPair, rsAstral].join('|') + ')';
 
 /** Used to match [string symbols](https://mathiasbynens.be/notes/javascript-unicode). */
-var reComplexSymbol = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');
+var reUnicode = RegExp(rsFitz + '(?=' + rsFitz + ')|' + rsSymbol + rsSeq, 'g');
 
 /** Used to detect strings with [zero-width joiners or code points from the astral planes](http://eev.ee/blog/2015/09/12/dark-corners-of-unicode/). */
-var reHasComplexSymbol = RegExp('[' + rsZWJ + rsAstralRange  + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']');
+var reHasUnicode = RegExp('[' + rsZWJ + rsAstralRange  + rsComboMarksRange + rsComboSymbolsRange + rsVarRange + ']');
 
 /** Detect free variable `global` from Node.js. */
 var freeGlobal = typeof global == 'object' && global && global.Object === Object && global;
@@ -51,6 +51,28 @@ var freeSelf = typeof self == 'object' && self && self.Object === Object && self
 /** Used as a reference to the global object. */
 var root = freeGlobal || freeSelf || Function('return this')();
 
+/**
+ * Converts an ASCII `string` to an array.
+ *
+ * @private
+ * @param {string} string The string to convert.
+ * @returns {Array} Returns the converted array.
+ */
+function asciiToArray(string) {
+  return string.split('');
+}
+
+/**
+ * Checks if `string` contains Unicode symbols.
+ *
+ * @private
+ * @param {string} string The string to inspect.
+ * @returns {boolean} Returns `true` if a symbol is found, else `false`.
+ */
+function hasUnicode(string) {
+  return reHasUnicode.test(string);
+}
+
 /**
  * Converts `string` to an array.
  *
@@ -59,7 +81,20 @@ var root = freeGlobal || freeSelf || Function('return this')();
  * @returns {Array} Returns the converted array.
  */
 function stringToArray(string) {
-  return string.match(reComplexSymbol);
+  return hasUnicode(string)
+    ? unicodeToArray(string)
+    : asciiToArray(string);
+}
+
+/**
+ * Converts a Unicode `string` to an array.
+ *
+ * @private
+ * @param {string} string The string to convert.
+ * @returns {Array} Returns the converted array.
+ */
+function unicodeToArray(string) {
+  return string.match(reUnicode) || [];
 }
 
 /** Used for built-in method references. */
@@ -67,7 +102,7 @@ var objectProto = Object.prototype;
 
 /**
  * Used to resolve the
- * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
@@ -155,7 +190,7 @@ function createCaseFirst(methodName) {
   return function(string) {
     string = toString(string);
 
-    var strSymbols = reHasComplexSymbol.test(string)
+    var strSymbols = hasUnicode(string)
       ? stringToArray(string)
       : undefined;
 

lodash.upperfirst/package.json

@@ -1,6 +1,6 @@
 {
   "name": "lodash.upperfirst",
-  "version": "4.3.0",
+  "version": "4.3.1",
   "description": "The lodash method `_.upperFirst` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",