Bump to v4.2.1.

lodash.isempty/README.md

@@ -1,4 +1,4 @@
-# lodash.isempty v4.2.0
+# lodash.isempty v4.2.1
 
 The [lodash](https://lodash.com/) method `_.isEmpty` exported as a [Node.js](https://nodejs.org/) module.
 
@@ -15,4 +15,4 @@ In Node.js:
 var isEmpty = require('lodash.isempty');
 ```
 
-See the [documentation](https://lodash.com/docs#isEmpty) or [package source](https://github.com/lodash/lodash/blob/4.2.0-npm-packages/lodash.isempty) for more details.
+See the [documentation](https://lodash.com/docs#isEmpty) or [package source](https://github.com/lodash/lodash/blob/4.2.1-npm-packages/lodash.isempty) for more details.

lodash.isempty/index.js

@@ -1,5 +1,5 @@
 /**
- * lodash 4.2.0 (Custom Build) <https://lodash.com/>
+ * lodash (Custom Build) <https://lodash.com/>
  * Build: `lodash modularize exports="npm" -o ./`
  * Copyright jQuery Foundation and other contributors <https://jquery.org/>
  * Released under MIT license <https://lodash.com/license>
@@ -25,7 +25,10 @@ var argsTag = '[object Arguments]',
 
 var dataViewTag = '[object DataView]';
 
-/** Used to match `RegExp` [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns). */
+/**
+ * Used to match `RegExp`
+ * [syntax characters](http://ecma-international.org/ecma-262/6.0/#sec-patterns).
+ */
 var reRegExpChar = /[\\^$.*+?()[\]{}|]/g;
 
 /** Used to detect host constructors (Safari). */
@@ -81,7 +84,8 @@ var funcToString = Function.prototype.toString;
 var hasOwnProperty = objectProto.hasOwnProperty;
 
 /**
- * Used to resolve the [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
+ * Used to resolve the
+ * [`toStringTag`](http://ecma-international.org/ecma-262/6.0/#sec-object.prototype.tostring)
  * of values.
  */
 var objectToString = objectProto.toString;
@@ -107,18 +111,18 @@ var DataView = getNative(root, 'DataView'),
 var nonEnumShadows = !propertyIsEnumerable.call({ 'valueOf': 1 }, 'valueOf');
 
 /** Used to detect maps, sets, and weakmaps. */
-var dataViewCtorString = DataView ? (DataView + '') : '',
-    mapCtorString = Map ? funcToString.call(Map) : '',
-    promiseCtorString = Promise ? funcToString.call(Promise) : '',
-    setCtorString = Set ? funcToString.call(Set) : '',
-    weakMapCtorString = WeakMap ? funcToString.call(WeakMap) : '';
+var dataViewCtorString = toSource(DataView),
+    mapCtorString = toSource(Map),
+    promiseCtorString = toSource(Promise),
+    setCtorString = toSource(Set),
+    weakMapCtorString = toSource(WeakMap);
 
 /**
  * The base implementation of `_.property` without support for deep paths.
  *
  * @private
  * @param {string} key The key of the property to get.
- * @returns {Function} Returns the new function.
+ * @returns {Function} Returns the new accessor function.
  */
 function baseProperty(key) {
   return function(object) {
@@ -172,8 +176,8 @@ if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
     (WeakMap && getTag(new WeakMap) != weakMapTag)) {
   getTag = function(value) {
     var result = objectToString.call(value),
-        Ctor = result == objectTag ? value.constructor : null,
-        ctorString = typeof Ctor == 'function' ? funcToString.call(Ctor) : '';
+        Ctor = result == objectTag ? value.constructor : undefined,
+        ctorString = Ctor ? toSource(Ctor) : undefined;
 
     if (ctorString) {
       switch (ctorString) {
@@ -188,6 +192,25 @@ if ((DataView && getTag(new DataView(new ArrayBuffer(1))) != dataViewTag) ||
   };
 }
 
+/**
+ * Converts `func` to its source code.
+ *
+ * @private
+ * @param {Function} func The function to process.
+ * @returns {string} Returns the source code.
+ */
+function toSource(func) {
+  if (func != null) {
+    try {
+      return funcToString.call(func);
+    } catch (e) {}
+    try {
+      return (func + '');
+    } catch (e) {}
+  }
+  return '';
+}
+
 /**
  * Checks if `value` is likely an `arguments` object.
  *
@@ -430,8 +453,9 @@ function isLength(value) {
 }
 
 /**
- * Checks if `value` is the [language type](https://es5.github.io/#x8) of `Object`.
- * (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
+ * Checks if `value` is the
+ * [language type](http://www.ecma-international.org/ecma-262/6.0/#sec-ecmascript-language-types)
+ * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)
  *
  * @static
  * @memberOf _
@@ -505,14 +529,11 @@ function isObjectLike(value) {
  * // => false
  */
 function isNative(value) {
-  if (value == null) {
+  if (!isObject(value)) {
     return false;
   }
-  if (isFunction(value)) {
-    return reIsNative.test(funcToString.call(value));
-  }
-  return isObjectLike(value) &&
-    (isHostObject(value) ? reIsNative : reIsHostCtor).test(value);
+  var pattern = (isFunction(value) || isHostObject(value)) ? reIsNative : reIsHostCtor;
+  return pattern.test(toSource(value));
 }
 
 /**
@@ -546,7 +567,7 @@ function isString(value) {
  * @since 2.4.0
  * @category Util
  * @param {*} value The value to return from the new function.
- * @returns {Function} Returns the new function.
+ * @returns {Function} Returns the new constant function.
  * @example
  *
  * var object = { 'user': 'fred' };

lodash.isempty/package.json

@@ -1,6 +1,6 @@
 {
   "name": "lodash.isempty",
-  "version": "4.2.0",
+  "version": "4.2.1",
   "description": "The lodash method `_.isEmpty` exported as a module.",
   "homepage": "https://lodash.com/",
   "icon": "https://lodash.com/icon.svg",