functional.js - npm Package Compare versions

Comparing version 0.0.1 to 0.0.2

functional.js

@@ -30,3 +30,16 @@ var λ = (function () {
     
+    λ.map = λ.curry(function (iterator, items) {
+        var mapped = [],
+            mapEach;
+        if (!items || typeof (iterator) !== "function") {
+            return;
+        }
+        mapEach = λ.each(function () {
+            mapped.push(iterator.apply(null, arguments));
+        });
+        mapEach(items);
+        return mapped;
+    });
+    
     return λ;
 })();

package.json

 {
     "author": "Lee Crossley <[e-mail]> (http://ilee.co.uk)",
     "name": "functional.js",
-    "version": "0.0.1",
+    "version": "0.0.2",
     "scripts": {
@@ -6,0 +6,0 @@ "preinstall": "npm install -g grunt-cli; npm install -g jasmine-node",

readme.md

 # functional.js (λ)
 
+functional.js is (go on, guess) a functional js library. It facilitates [currying](http://en.wikipedia.org/wiki/Currying) and [point-free / tacit](http://en.wikipedia.org/wiki/Tacit_programming) programming in JavaScript.
+
 [![Build Status](https://travis-ci.org/leecrossley/functional-js.png?branch=master)](https://travis-ci.org/leecrossley/functional-js)
 
-functional.js is (go on, guess) a functional js library. It facilitates [currying](http://en.wikipedia.org/wiki/Currying) and [point-free / tacit](http://en.wikipedia.org/wiki/Tacit_programming) programming in JavaScript.
+### Basic λ.curry example
 
-### λ.curry example
-
 ```javascript
@@ -35,2 +35,18 @@ var concatenate = λ.curry(function(word1, word2) {
 expect(result).toEqual(["f", "u", "n", "c"]);
+```
+
+### Curried λ.map example
+
+```javascript
+var items = [1, 2, 3];
+
+var doubleUp = function (number) {
+    return number * 2;
+};
+
+var doubleMap = λ.map(doubleUp);
+expect(typeof (doubleMap)).toEqual("function");
+
+var result = doubleMap(items);
+expect(result).toEqual([2, 4, 6]);
 ```

spec.js

@@ -80,2 +80,28 @@ describe("functional", function() {
     });
+    
+    it("should be able to double numbers in an array using λ.map", function() {
+        var items = [1, 2, 3];
+
+        var doubleUp = function (number) {
+            return number * 2;
+        };
+
+        var result = λ.map(doubleUp, items);
+        
+        expect(result).toEqual([2, 4, 6]);
+    });
+    
+    it("should be able to λ.curry λ.map", function() {
+        var items = [1, 2, 3];
+
+        var doubleUp = function (number) {
+            return number * 2;
+        };
+
+        var doubleMap = λ.map(doubleUp);
+        expect(typeof (doubleMap)).toEqual("function");
+        
+        var result = doubleMap(items);
+        expect(result).toEqual([2, 4, 6]);
+    });
 });

No alert changes

Improved metrics

Total package byte prevSize

7206

23.45%

Lines of code

140

27.27%

Number of lines in readme file

51

45.71%

No dependency changes