lodash.assign - npm Package Compare versions

Comparing version 3.0.0 to 3.1.0

index.js

 /**
- * lodash 3.0.0 (Custom Build) <https://lodash.com/>
+ * lodash 3.1.0 (Custom Build) <https://lodash.com/>
  * Build: `lodash modern modularize exports="npm" -o ./`
  * Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
- * Based on Underscore.js 1.7.0 <http://underscorejs.org/LICENSE>
+ * Based on Underscore.js 1.8.3 <http://underscorejs.org/LICENSE>
  * Copyright 2009-2015 Jeremy Ashkenas, DocumentCloud and Investigative Reporters & Editors
@@ -10,11 +10,104 @@ * Available under MIT license <https://lodash.com/license>
 var baseAssign = require('lodash._baseassign'),
-    createAssigner = require('lodash._createassigner');
+    createAssigner = require('lodash._createassigner'),
+    isNative = require('lodash.isnative'),
+    keys = require('lodash.keys');
 
+/** Used for native method references. */
+var arrayProto = Array.prototype;
+
+/** Native method references. */
+var getOwnPropertySymbols = isNative(getOwnPropertySymbols = Object.getOwnPropertySymbols) && getOwnPropertySymbols,
+    push = arrayProto.push;
+
 /**
+ * A specialized version of `_.assign` for customizing assigned values without
+ * support for argument juggling, multiple sources, and `this` binding `customizer`
+ * functions.
+ *
+ * @private
+ * @param {Object} object The destination object.
+ * @param {Object} source The source object.
+ * @param {Function} customizer The function to customize assigned values.
+ * @returns {Object} Returns `object`.
+ */
+function assignWith(object, source, customizer) {
+  var props = keys(source);
+  push.apply(props, getSymbols(source));
+
+  var index = -1,
+      length = props.length;
+
+  while (++index < length) {
+    var key = props[index],
+        value = object[key],
+        result = customizer(value, source[key], key, object, source);
+
+    if ((result === result ? (result !== value) : (value === value)) ||
+        (value === undefined && !(key in object))) {
+      object[key] = result;
+    }
+  }
+  return object;
+}
+
+/**
+ * Creates an array of the own symbols of `object`.
+ *
+ * @private
+ * @param {Object} object The object to query.
+ * @returns {Array} Returns the array of symbols.
+ */
+var getSymbols = !getOwnPropertySymbols ? constant([]) : function(object) {
+  return getOwnPropertySymbols(toObject(object));
+};
+
+/**
+ * Converts `value` to an object if it is not one.
+ *
+ * @private
+ * @param {*} value The value to process.
+ * @returns {Object} Returns the object.
+ */
+function toObject(value) {
+  return isObject(value) ? value : Object(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('')`)
+ *
+ * @static
+ * @memberOf _
+ * @category Lang
+ * @param {*} value The value to check.
+ * @returns {boolean} Returns `true` if `value` is an object, else `false`.
+ * @example
+ *
+ * _.isObject({});
+ * // => true
+ *
+ * _.isObject([1, 2, 3]);
+ * // => true
+ *
+ * _.isObject(1);
+ * // => false
+ */
+function isObject(value) {
+  // Avoid a V8 JIT bug in Chrome 19-20.
+  // See https://code.google.com/p/v8/issues/detail?id=2291 for more details.
+  var type = typeof value;
+  return type == 'function' || (!!value && type == 'object');
+}
+
+/**
  * Assigns own enumerable properties of source object(s) to the destination
  * object. Subsequent sources overwrite property assignments of previous sources.
  * If `customizer` is provided it is invoked to produce the assigned values.
- * The `customizer` is bound to `thisArg` and invoked with five arguments;
+ * The `customizer` is bound to `thisArg` and invoked with five arguments:
  * (objectValue, sourceValue, key, object, source).
  *
+ * **Note:** This method mutates `object` and is based on
+ * [`Object.assign`](https://people.mozilla.org/~jorendorff/es6-draft.html#sec-object.assign).
+ *
+ *
  * @static
@@ -26,3 +119,3 @@ * @memberOf _
  * @param {...Object} [sources] The source objects.
- * @param {Function} [customizer] The function to customize assigning values.
+ * @param {Function} [customizer] The function to customize assigned values.
  * @param {*} [thisArg] The `this` binding of `customizer`.
@@ -37,3 +130,3 @@ * @returns {Object} Returns `object`.
  * var defaults = _.partialRight(_.assign, function(value, other) {
- *   return typeof value == 'undefined' ? other : value;
+ *   return _.isUndefined(value) ? other : value;
  * });
@@ -44,4 +137,30 @@ *
  */
-var assign = createAssigner(baseAssign);
+var assign = createAssigner(function(object, source, customizer) {
+  return customizer
+    ? assignWith(object, source, customizer)
+    : baseAssign(object, source);
+});
 
+/**
+ * Creates a function that returns `value`.
+ *
+ * @static
+ * @memberOf _
+ * @category Utility
+ * @param {*} value The value to return from the new function.
+ * @returns {Function} Returns the new function.
+ * @example
+ *
+ * var object = { 'user': 'fred' };
+ * var getter = _.constant(object);
+ *
+ * getter() === object;
+ * // => true
+ */
+function constant(value) {
+  return function() {
+    return value;
+  };
+}
+
 module.exports = assign;

LICENSE.txt

 Copyright 2012-2015 The Dojo Foundation <http://dojofoundation.org/>
-Based on Underscore.js 1.7.0, copyright 2009-2015 Jeremy Ashkenas,
+Based on Underscore.js, copyright 2009-2015 Jeremy Ashkenas,
 DocumentCloud and Investigative Reporters & Editors <http://underscorejs.org/>
@@ -4,0 +4,0 @@

package.json

 {
   "name": "lodash.assign",
-  "version": "3.0.0",
+  "version": "3.1.0",
   "description": "The modern build of lodash’s `_.assign` as a module.",
@@ -21,4 +21,6 @@ "homepage": "https://lodash.com/",
     "lodash._baseassign": "^3.0.0",
-    "lodash._createassigner": "^3.0.0"
+    "lodash._createassigner": "^3.0.0",
+    "lodash.isnative": "^3.0.0",
+    "lodash.keys": "^3.0.0"
   }
 }

README.md

@@ -1,2 +0,2 @@
-# lodash.assign v3.0.0
+# lodash.assign v3.1.0
 
@@ -20,2 +20,2 @@ The [modern build](https://github.com/lodash/lodash/wiki/Build-Differences) of [lodash’s](https://lodash.com/) `_.assign` exported as a [Node.js](http://nodejs.org/)/[io.js](https://iojs.org/) module.
 
-See the [documentation](https://lodash.com/docs#assign) or [package source](https://github.com/lodash/lodash/blob/3.0.0-npm-packages/lodash.assign) for more details.
+See the [documentation](https://lodash.com/docs#assign) or [package source](https://github.com/lodash/lodash/blob/3.1.0-npm-packages/lodash.assign) for more details.

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Improved metrics

Total package byte prevSize

7740

increased by72.31%

Lines of code

150

increased by265.85%

Worsened metrics

Dependency count

4

increased by100%

Dependency changes

• + Addedlodash.isnative@^3.0.0

• + Addedlodash.keys@^3.0.0

• + Addedlodash.isnative@3.0.7(transitive)