prototypes - npm Package Compare versions

Comparing version 0.2.7 to 0.3.0

lib/object.js

@@ -195,4 +195,8 @@ 'use strict';
  */
-newObject.filter = function(callback)
+newObject.filterIn = function(callback)
 {
+	if (this.isArray())
+	{
+		return this.filter(callback);
+	}
 	var result = {};
@@ -210,2 +214,13 @@ for (var key in this)
 
+/**
+ * Return a new object with just the properties that *do not* pass the callback.
+ */
+newObject.filterOut = function(callback)
+{
+	return this.filterIn(function(element)
+	{
+		return (!callback(element));
+	});
+};
+
 function testFilter(callback)
@@ -218,3 +233,3 @@ {
 	};
-	var filtered = object.filter(function(value)
+	var filtered = object.filterIn(function(value)
 	{
@@ -226,3 +241,3 @@ return value < 3;
 	testing.assertEquals(filtered.b, 2, 'Invalid b in filtered', callback);
-	filtered = object.filter(function(value)
+	filtered = object.filterIn(function(value)
 	{
@@ -233,2 +248,8 @@ return value > 2;
 	testing.assertEquals(filtered.c, 3, 'Invalid c in filtered', callback);
+	filtered = object.filterOut(function(value)
+	{
+		return value > 2;
+	});
+	testing.assertEquals(filtered.countProperties(), 2, 'Invalid !>3 count', callback);
+	testing.assertEquals(filtered.a, 1, 'Invalid c in filtered out', callback);
 	testing.success(callback);
@@ -235,0 +256,0 @@ }

package.json

 {
 	"name": "prototypes",
-	"version": "0.2.7",
+	"version": "0.3.0",
 	"description": "Some common prototypes for node.js: string.startsWith(), object.countProperties() and more. Facilities for functional programming with objects: object.forEach(), object.filter(). Functions are added safely using Object.defineProperty().",
@@ -5,0 +5,0 @@ "homepage": "https://github.com/alexfernandez/prototypes",

README.md

@@ -10,3 +10,3 @@ [![Build Status](https://secure.travis-ci.org/alexfernandez/prototypes.png)](http://travis-ci.org/alexfernandez/prototypes)
 Includes nice facilities for functional programming with objects:
-`object.forEach()`, `object.filter()` and so on.
+`object.forEach()`, `object.filterIn()` and so on.
 
@@ -188,12 +188,13 @@ ## Installation
 
-### object.filter(callback)
+### object.filterIn(callback)
 
 Return a new object that only includes those properties of the object
-that return true for the given callback, i.e.:
+that return `true` for the given callback, i.e.:
 `callback(value) == true`.
 Does not modify the original object.
+For an array it is equivalent to `array.filter()`.
 Example:
 
 ```
-{a: 1, b: 2}.forEach(function(value)
+{a: 1, b: 2}.filterIn(function(value)
 {
@@ -205,2 +206,19 @@ return value > 1;
 
+### object.filterOut(callback)
+
+Return a new object that only includes those properties of the object
+that return `false` for the given callback, i.e.:
+`callback(value) != true`.
+Does not modify the original object.
+For an array it is equivalent to `array.filterOut()` added above.
+Example:
+
+```
+{a: 1, b: 2}.filterOut(function(value)
+{
+    return value > 1;
+});
+  \=> {a: 1}
+```
+
 ### object.isArray()
@@ -207,0 +225,0 @@

No alert changes

Improved metrics

Total package byte prevSize

33998

increased by2.89%

Lines of code

913

increased by2.24%

Number of lines in readme file

361

increased by5.25%

No dependency changes