copykitten - npm Package Compare versions

Comparing version 0.0.4 to 0.0.5

copykitten.js

@@ -44,2 +44,13 @@ (function (global, factory) {
 
+    function deepMerge(a, b) {
+        props(b).forEach(function (k) {
+            if (typeof a[k] === 'object' && typeof b[k] === 'object') {
+                a[k] = a[k].deepMerge(b[k]);
+            }
+            else {
+                a[k] = b[k];
+            }
+        });
+    }
+
     function thaw(source, constructor) {
@@ -73,2 +84,6 @@ return merge(new (constructor || source.constructor), source);
 
+    FrozenObject.prototype.deepMerge = updater(function (obj) {
+        deepMerge(this, obj);
+    });
+
     FrozenObject.prototype.thaw = function () {
@@ -75,0 +90,0 @@ return thaw(this, Object);

package.json

 {
   "name": "copykitten",
-  "version": "0.0.4",
+  "version": "0.0.5",
   "description": "Tiny immutable JSON data structures",
@@ -5,0 +5,0 @@ "scripts": {

README.md

@@ -43,3 +43,4 @@ # copykitten.js
   * [remove(key)](#FrozenObject_remove)
-  * [merge(props)](#FrozenObject_props)
+  * [merge(props)](#FrozenObject_merge)
+  * [deepMerge(props)](#FrozenObject_deepMerge)
   * [update(f)](#FrozenObject_update)
@@ -156,2 +157,17 @@ * [thaw()](#FrozenObject_thaw)
 
+<a name="FrozenObject_deepMerge"></a>
+
+#### deepMerge(props)
+
+Like [merge(props)](#FrozenObject_merge) but will recursively merge
+nested objects.
+
+```javascript
+var a = copykitten.toImmutable({animal: {name: 'Kitten'}});
+var b = a.deepMerge({animal: {status: 'hungry'}});
+
+// a is now {animal: {name: 'Kitten'}}
+// b is now {animal: {name: 'Kitten', status: 'hungry'}}
+```
+
 <a name="FrozenObject_update"></a>
@@ -158,0 +174,0 @@

test/test.js

@@ -166,2 +166,41 @@ var assert = (typeof chai === 'undefined') ?
 
+    test('deepMerge', function () {
+        "use strict";
+        var obj = copykitten.toImmutable({
+            title: 'test',
+            meta: {
+                author: {
+                    name: 'foo',
+                    role: 'user'
+                }
+            }
+        });
+        var obj2 = obj.deepMerge({
+            meta: {
+                author: {
+                    id: 123,
+                    role: 'admin'
+                },
+                date: 'today'
+            },
+            other: {
+                something: 'else'
+            }
+        });
+        assert.deepEqual(JSON.parse(JSON.stringify(obj2)), {
+            title: 'test',
+            meta: {
+                author: {
+                    id: 123,
+                    role: 'admin',
+                    name: 'foo'
+                },
+                date: 'today'
+            },
+            other: {
+                something: 'else'
+            }
+        });
+    });
+
     test('JSON.stringify', function () {
@@ -168,0 +207,0 @@ var obj = copykitten.toImmutable({

No alert changes

Improved metrics

Total package byte prevSize

399380

increased by0.44%

Lines of code

11202

increased by0.46%

Number of lines in readme file

484

increased by3.42%

No dependency changes