object-path-immutable - npm Package Compare versions

Comparing version 0.1.0 to 0.2.0

index.js

@@ -155,3 +155,19 @@ (function (root, factory){
   
+  objectPathImmutable.assign = function(obj, path, source) {
+    return changeImmutable(obj, path, function(clonedObj, finalPath) {
+      source = Object(source);
+      var target = clone(clonedObj[finalPath], true)
+
+      for (var key in source) {
+        if (_hasOwnProperty.call(source, key)) {
+          target[key] = source[key]
+        }
+      }
+
+      clonedObj[finalPath] = target
+      return clonedObj
+    })
+  }
+  
   return objectPathImmutable
 })

package.json

 {
   "name": "object-path-immutable",
-  "version": "0.1.0",
+  "version": "0.2.0",
   "description": "Modify deep object properties without modifying the original object (immutability). Works great with React and Redux.",
@@ -5,0 +5,0 @@ "author": "Mario Casciaro <[e-mail]>",

README.md

@@ -122,2 +122,13 @@ object-path-immutable
 
+//shallow copy properties
+var newObj = immutable.assign(obj, 'a', { b: 'f', g: 'h' })
+//returns
+//var obj = {
+//  a: {
+//    b: 'f',
+//    c: ['d, 'f'],
+//    g: 'h'
+//  }
+//}
+
 //Chaining mode. value() at the end of the chain is used to retrieve the resulting object
@@ -134,2 +145,2 @@ var newObj = immutable(obj).set(obj, 'a.b', 'f').del(obj, 'a.c.0').value()
 
-* [Mario Casciaro](https://github.com/mariocasciaro) - Author
+* [Mario Casciaro](https://github.com/mariocasciaro) - Author

test.js

@@ -133,2 +133,55 @@ 'use strict';
   })
+})
+
+describe('assign', function() {
+  it('should assign an object without modifying the original object', function() {
+    var obj = {
+      a: {
+        b: 1
+      },
+      c: {
+        d: 2
+      }
+    }
+    
+    var newObj = op.assign(obj, 'a', { b: 3 })
+    
+    expect(newObj).not.to.be.equal(obj)
+    expect(newObj.a).not.to.be.equal(obj.a)
+    expect(obj.a).to.be.eql({b: 1})
+    expect(newObj.c).to.be.equal(obj.c)
+    
+    expect(newObj.a.b).to.be.equal(3)
+  })
+
+  it('should keep existing fields that are not overwritten', function() {
+    var obj = {
+      a: {
+        b: 1
+      }
+    }
+    
+    var newObj = op.assign(obj, 'a', { c: 2 })
+    
+    expect(newObj).not.to.be.equal(obj)
+    expect(newObj.a).not.to.be.equal(obj.a)
+    expect(obj.a).to.be.eql({b: 1})
+    expect(newObj.a).to.be.eql({ b: 1, c: 2 })
+  })
+  
+  it('should create intermediate objects', function() {
+    var obj = {
+      a: {},
+      c: {
+        d: 2
+      }
+    }
+    
+    var newObj = op.assign(obj, 'a.b', { f: 'a' })
+    
+    expect(newObj).not.to.be.equal(obj)
+    expect(newObj.a).not.to.be.equal(obj.a)
+    expect(obj.a).to.be.eql({})
+    expect(newObj.a).to.be.eql({b: {f: 'a'}})
+  })
 })

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Improved metrics

Total package byte prevSize

14002

increased by14.63%

Lines of code

290

increased by23.93%

Number of lines in readme file

145

increased by9.02%

No dependency changes