diff options
Diffstat (limited to 'includes/js/dojox/lang/functional/fold.js')
-rw-r--r-- | includes/js/dojox/lang/functional/fold.js | 87 |
1 files changed, 0 insertions, 87 deletions
diff --git a/includes/js/dojox/lang/functional/fold.js b/includes/js/dojox/lang/functional/fold.js deleted file mode 100644 index 90a9a3d..0000000 --- a/includes/js/dojox/lang/functional/fold.js +++ /dev/null @@ -1,87 +0,0 @@ -if(!dojo._hasResource["dojox.lang.functional.fold"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. -dojo._hasResource["dojox.lang.functional.fold"] = true; -dojo.provide("dojox.lang.functional.fold"); - -dojo.require("dojox.lang.functional.lambda"); - -// This module adds high-level functions and related constructs: -// - "fold" family of functions - -// Notes: -// - missing high-level functions are provided with the compatible API: -// foldl, foldl1, foldr, foldr1 -// - missing JS standard functions are provided with the compatible API: -// reduce, reduceRight - -// Defined methods: -// - take any valid lambda argument as the functional argument -// - operate on dense arrays -// - take a string as the array argument -// - take an iterator objects as the array argument (only foldl, foldl1, and reduce) - -(function(){ - var d = dojo, df = dojox.lang.functional; - - d.mixin(df, { - // classic reduce-class functions - foldl: function(/*Array|String|Object*/ a, /*Function*/ f, /*Object*/ z, /*Object?*/ o){ - // summary: repeatedly applies a binary function to an array from left - // to right using a seed value as a starting point; returns the final - // value. - if(typeof a == "string"){ a = a.split(""); } - o = o || d.global; f = df.lambda(f); - if(d.isArray(a)){ - for(var i = 0, n = a.length; i < n; z = f.call(o, z, a[i], i, a), ++i); - }else{ - for(var i = 0; a.hasNext(); z = f.call(o, z, a.next(), i++)); - } - return z; // Object - }, - foldl1: function(/*Array|String|Object*/ a, /*Function|String|Array*/ f, /*Object?*/ o){ - // summary: repeatedly applies a binary function to an array from left - // to right; returns the final value. - if(typeof a == "string"){ a = a.split(""); } - o = o || d.global; f = df.lambda(f); - var z; - if(d.isArray(a)){ - z = a[0]; - for(var i = 1, n = a.length; i < n; z = f.call(o, z, a[i], i, a), ++i); - }else if(a.hasNext()){ - z = a.next(); - for(var i = 1; a.hasNext(); z = f.call(o, z, a.next(), i++)); - } - return z; // Object - }, - foldr: function(/*Array|String*/ a, /*Function|String|Array*/ f, /*Object*/ z, /*Object?*/ o){ - // summary: repeatedly applies a binary function to an array from right - // to left using a seed value as a starting point; returns the final - // value. - if(typeof a == "string"){ a = a.split(""); } - o = o || d.global; f = df.lambda(f); - for(var i = a.length; i > 0; --i, z = f.call(o, z, a[i], i, a)); - return z; // Object - }, - foldr1: function(/*Array|String*/ a, /*Function|String|Array*/ f, /*Object?*/ o){ - // summary: repeatedly applies a binary function to an array from right - // to left; returns the final value. - if(typeof a == "string"){ a = a.split(""); } - o = o || d.global; f = df.lambda(f); - var n = a.length, z = a[n - 1]; - for(var i = n - 1; i > 0; --i, z = f.call(o, z, a[i], i, a)); - return z; // Object - }, - // JS 1.8 standard array functions, which can take a lambda as a parameter. - reduce: function(/*Array|String|Object*/ a, /*Function*/ f, /*Object?*/ z){ - // summary: apply a function simultaneously against two values of the array - // (from left-to-right) as to reduce it to a single value. - return arguments.length < 3 ? df.foldl1(a, f) : df.foldl(a, f, z); // Object - }, - reduceRight: function(/*Array|String*/ a, /*Function*/ f, /*Object?*/ z){ - // summary: apply a function simultaneously against two values of the array - // (from right-to-left) as to reduce it to a single value. - return arguments.length < 3 ? df.foldr1(a, f) : df.foldr(a, f, z); // Object - } - }); -})(); - -} |