functional.js - npm Package Compare versions

Comparing version 0.1.11 to 0.1.12

functional.js

@@ -8,6 +8,10 @@ var λ = (function () {
 
-    λ.curry = function (func) {
+    var checkFunction = function (func) {
         if (!func || typeof (func) !== "function") {
-            throw "λ Error: No function to curry";
+            throw "λ Error: Invalid function";
         }
+    };
+
+    λ.curry = function (func) {
+        checkFunction(func);
         return function inner() {
@@ -90,9 +94,17 @@ var _args = sliceArgs(arguments);
 
+    λ.every = λ.all = λ.curry(function (iterator, items) {
+        checkFunction(iterator);
+        var isEvery = true;
+        λ.each(function (item) {
+            if (!iterator.call(null, item)) {
+                isEvery = false;
+            }
+        }, items);
+        return isEvery;
+    });
+
     λ.any = λ.curry(function (iterator, items) {
-        var anyEach, 
-            isAny = false;
-        if (typeof (iterator) !== "function") {
-            throw "λ Error: Invalid function";
-        }
-        anyEach = λ.each(function (item) {
+        checkFunction(iterator);
+        var isAny = false;
+        λ.each(function (item) {
             if (iterator.call(null, item)) {
@@ -102,4 +114,3 @@ isAny = true;
             }
-        });
-        anyEach(items);
+        }, items);
         return isAny;
@@ -109,7 +120,5 @@ });
     λ.select = λ.curry(function (iterator, items) {
+        checkFunction(iterator);
         var filtered = [],
             filterEach;
-        if (typeof (iterator) !== "function") {
-            throw "λ Error: Invalid function";
-        }
         filterEach = λ.each(function (item) {
@@ -143,8 +152,6 @@ if (iterator.call(null, item)) {
     λ.partition = λ.curry(function (iterator, items) {
+        checkFunction(iterator);
         var truthy = [], 
             falsy = [],
             partitionEach;
-        if (typeof (iterator) !== "function") {
-            throw "λ Error: Invalid function";
-        }
         partitionEach = λ.each(function (item) {
@@ -151,0 +158,0 @@ (iterator.call(null, item) ? truthy : falsy).push(item);

functional.min.js

 /*!
-    functional.js (v0.1.11) 02-09-2013
+    functional.js (v0.1.12) 02-09-2013
     (c) Lee Crossley <[e-mail]> (http://ilee.co.uk/)
 */
-var λ=function(){var a={},b=function(a){return a.length>0?[].slice.call(a,0):[]};return a.curry=function(c){if(!c||"function"!=typeof c)throw"λ Error: No function to curry";return function d(){var e=b(arguments);if(e.length===c.length)return c.apply(null,e);if(e.length>c.length){var f=c.apply(null,e);return a.reduce(c,f,e.slice(c.length))}return function(){var a=b(arguments);return d.apply(null,e.concat(a))}}},a.each=a.curry(function(a,b){if(b&&"function"==typeof a)for(var c=0;c<b.length;c++)a(b[c])}),a.map=a.curry(function(b,c){var d,e=[];if(c&&"function"==typeof b)return d=a.each(function(){e.push(b.apply(null,arguments))}),d(c),e}),a.reduce=a.reducel=a.curry(function(b,c,d){var e,f=c;if(d&&"function"==typeof b)return e=a.each(function(a){f=b.call(null,f,a)}),e(d),f}),a.first=a.curry(function(b,c){var d;if("function"!=typeof b)throw"λ Error: Invalid function";return a.each(function(a){!d&&b.call(null,a)&&(d=a)},c),d}),a.last=a.curry(function(b,c){var d;if("function"!=typeof b)throw"λ Error: Invalid function";return a.each(function(a){b.call(null,a)&&(d=a)},c),d}),a.any=a.curry(function(b,c){var d,e=!1;if("function"!=typeof b)throw"λ Error: Invalid function";return d=a.each(function(a){return b.call(null,a)?(e=!0,void 0):void 0}),d(c),e}),a.select=a.curry(function(b,c){var d,e=[];if("function"!=typeof b)throw"λ Error: Invalid function";return d=a.each(function(a){b.call(null,a)&&e.push(a)}),d(c),e}),a.compose=function(c){var d=a.any(function(a){return"function"!=typeof a});if(c=b(arguments),d(c))throw"λ Error: Invalid function to compose";return function(){var b=arguments,d=a.each(function(a){b=[a.apply(null,b)]});return d(c.reverse()),b[0]}},a.partition=a.curry(function(b,c){var d,e=[],f=[];if("function"!=typeof b)throw"λ Error: Invalid function";return d=a.each(function(a){(b.call(null,a)?e:f).push(a)}),d(c),[e,f]}),a}();"undefined"!=typeof exports&&("undefined"!=typeof module&&module.exports&&(exports=module.exports=λ),exports.λ=λ);
+var λ=function(){var a={},b=function(a){return a.length>0?[].slice.call(a,0):[]},c=function(a){if(!a||"function"!=typeof a)throw"λ Error: Invalid function"};return a.curry=function(d){return c(d),function e(){var c=b(arguments);if(c.length===d.length)return d.apply(null,c);if(c.length>d.length){var f=d.apply(null,c);return a.reduce(d,f,c.slice(d.length))}return function(){var a=b(arguments);return e.apply(null,c.concat(a))}}},a.each=a.curry(function(a,b){if(b&&"function"==typeof a)for(var c=0;c<b.length;c++)a(b[c])}),a.map=a.curry(function(b,c){var d,e=[];if(c&&"function"==typeof b)return d=a.each(function(){e.push(b.apply(null,arguments))}),d(c),e}),a.reduce=a.reducel=a.curry(function(b,c,d){var e,f=c;if(d&&"function"==typeof b)return e=a.each(function(a){f=b.call(null,f,a)}),e(d),f}),a.first=a.curry(function(b,c){var d;if("function"!=typeof b)throw"λ Error: Invalid function";return a.each(function(a){!d&&b.call(null,a)&&(d=a)},c),d}),a.last=a.curry(function(b,c){var d;if("function"!=typeof b)throw"λ Error: Invalid function";return a.each(function(a){b.call(null,a)&&(d=a)},c),d}),a.every=a.all=a.curry(function(b,d){c(b);var e=!0;return a.each(function(a){b.call(null,a)||(e=!1)},d),e}),a.any=a.curry(function(b,d){c(b);var e=!1;return a.each(function(a){return b.call(null,a)?(e=!0,void 0):void 0},d),e}),a.select=a.curry(function(b,d){c(b);var e,f=[];return e=a.each(function(a){b.call(null,a)&&f.push(a)}),e(d),f}),a.compose=function(c){var d=a.any(function(a){return"function"!=typeof a});if(c=b(arguments),d(c))throw"λ Error: Invalid function to compose";return function(){var b=arguments,d=a.each(function(a){b=[a.apply(null,b)]});return d(c.reverse()),b[0]}},a.partition=a.curry(function(b,d){c(b);var e,f=[],g=[];return e=a.each(function(a){(b.call(null,a)?f:g).push(a)}),e(d),[f,g]}),a}();"undefined"!=typeof exports&&("undefined"!=typeof module&&module.exports&&(exports=module.exports=λ),exports.λ=λ);

package.json

@@ -6,3 +6,3 @@ {
     "homepage": "http://ilee.co.uk",
-    "version": "0.1.11",
+    "version": "0.1.12",
     "main": "functional.min.js",
@@ -9,0 +9,0 @@ "keywords": [

readme.md

@@ -171,2 +171,40 @@ # functional.js (λ) [![Build Status](https://travis-ci.org/leecrossley/functional-js.png?branch=master)](https://travis-ci.org/leecrossley/functional-js) [![devDependency Status](https://david-dm.org/leecrossley/functional-js/dev-status.png)](https://david-dm.org/leecrossley/functional-js#info=devDependencies)
 
+### Curried λ.last example
+
+```javascript
+var items = [5, 4, 3, 2, 1];
+
+var even = function (item) {
+    return item % 2 === 0;
+};
+var odd = function (item) {
+    return item % 2 !== 0;
+};
+
+var lastEven = λ.last(even);
+var lastOdd = λ.last(odd);
+
+expect(lastEven(items)).toEqual(2);
+expect(lastOdd(items)).toEqual(1);
+```
+
+### Curried λ.every example
+
+```javascript
+var items = [2, 4, 6, 8];
+
+var even = function (item) {
+    return item % 2 === 0;
+};
+var odd = function (item) {
+    return item % 2 !== 0;
+};
+
+var everyEven = λ.every(even);
+var everyOdd = λ.every(odd);
+
+expect(everyEven(items)).toEqual(true);
+expect(everyOdd(items)).toEqual(false);
+```
+
 ### Multiple λ.compose example
@@ -173,0 +211,0 @@

spec.js

@@ -15,4 +15,4 @@ describe("functional", function() {
 
-        expect(result1).toThrow("λ Error: No function to curry");
-        expect(result2).toThrow("λ Error: No function to curry");
+        expect(result1).toThrow("λ Error: Invalid function");
+        expect(result2).toThrow("λ Error: Invalid function");
     });
@@ -215,2 +215,23 @@
 
+    it("should be able to λ.curry λ.every", function() {
+        var items = [2, 4, 6, 8];
+
+        var even = function (item) {
+            return item % 2 === 0;
+        };
+        var odd = function (item) {
+            return item % 2 !== 0;
+        };
+
+        var everyEven = λ.every(even);
+        var everyOdd = λ.every(odd);
+
+        expect(everyEven(items)).toEqual(true);
+        expect(everyOdd(items)).toEqual(false);
+    });
+
+    it("should be able to use λ.every or λ.all", function() {
+        expect(λ.every).toEqual(λ.all);
+    });
+
     it("should throw an error attempting to λ.compose anything that isn't a function", function() {
@@ -217,0 +238,0 @@ var f = function (a) {

No alert changes

Improved metrics

Total package byte prevSize

22954

6.04%

Lines of code

422

5.24%

Number of lines in readme file

240

18.81%

No dependency changes