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author | mensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f> | 2008-11-13 09:49:11 +0000 |
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committer | mensonge <mensonge@b3834d28-1941-0410-a4f8-b48e95affb8f> | 2008-11-13 09:49:11 +0000 |
commit | e44a7e37b6c7b5961adaffc62b9042b8d442938e (patch) | |
tree | 95b67c356e93163467db2451f2b8cce84ed5d582 /includes/js/dojox/lang/functional/reversed.js | |
parent | a62b9742ee5e28bcec6872d88f50f25b820914f6 (diff) | |
download | semanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.gz semanticscuttle-e44a7e37b6c7b5961adaffc62b9042b8d442938e.tar.bz2 |
New feature: basic Ajax suggestion for tags and implementation of Dojo toolkit
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
Diffstat (limited to 'includes/js/dojox/lang/functional/reversed.js')
-rw-r--r-- | includes/js/dojox/lang/functional/reversed.js | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/includes/js/dojox/lang/functional/reversed.js b/includes/js/dojox/lang/functional/reversed.js new file mode 100644 index 0000000..4375948 --- /dev/null +++ b/includes/js/dojox/lang/functional/reversed.js @@ -0,0 +1,79 @@ +if(!dojo._hasResource["dojox.lang.functional.reversed"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code. +dojo._hasResource["dojox.lang.functional.reversed"] = true; +dojo.provide("dojox.lang.functional.reversed"); + +dojo.require("dojox.lang.functional.lambda"); + +// This module adds high-level functions and related constructs: +// - reversed versions of array-processing functions similar to standard JS functions + +// Notes: +// - this module provides reversed versions of standard array-processing functions: +// forEachRev, mapRev, filterRev + +// Defined methods: +// - take any valid lambda argument as the functional argument +// - operate on dense arrays +// - take a string as the array argument + +(function(){ + var d = dojo, df = dojox.lang.functional; + + d.mixin(df, { + // JS 1.6 standard array functions, which can take a lambda as a parameter. + // Consider using dojo._base.array functions, if you don't need the lambda support. + filterRev: function(/*Array|String*/ a, /*Function|String|Array*/ f, /*Object?*/ o){ + // summary: creates a new array with all elements that pass the test + // implemented by the provided function. + if(typeof a == "string"){ a = a.split(""); } + o = o || d.global; f = df.lambda(f); + var t = [], v; + for(var i = a.length - 1; i >= 0; --i){ + v = a[i]; + if(f.call(o, v, i, a)){ t.push(v); } + } + return t; // Array + }, + forEachRev: function(/*Array|String*/ a, /*Function|String|Array*/ f, /*Object?*/ o){ + // summary: executes a provided function once per array element. + if(typeof a == "string"){ a = a.split(""); } + o = o || d.global; f = df.lambda(f); + for(var i = a.length - 1; i >= 0; f.call(o, a[i], i, a), --i); + }, + mapRev: function(/*Array|String*/ a, /*Function|String|Array*/ f, /*Object?*/ o){ + // summary: creates a new array with the results of calling + // a provided function on every element in this array. + if(typeof a == "string"){ a = a.split(""); } + o = o || d.global; f = df.lambda(f); + var n = a.length, t = new Array(n); + for(var i = n - 1, j = 0; i >= 0; t[j++] = f.call(o, a[i], i, a), --i); + return t; // Array + }, + everyRev: function(/*Array|String*/ a, /*Function|String|Array*/ f, /*Object?*/ o){ + // summary: tests whether all elements in the array pass the test + // implemented by the provided function. + if(typeof a == "string"){ a = a.split(""); } + o = o || d.global; f = df.lambda(f); + for(var i = a.length - 1; i >= 0; --i){ + if(!f.call(o, a[i], i, a)){ + return false; // Boolean + } + } + return true; // Boolean + }, + someRev: function(/*Array|String*/ a, /*Function|String|Array*/ f, /*Object?*/ o){ + // summary: tests whether some element in the array passes the test + // implemented by the provided function. + if(typeof a == "string"){ a = a.split(""); } + o = o || d.global; f = df.lambda(f); + for(var i = a.length - 1; i >= 0; --i){ + if(f.call(o, a[i], i, a)){ + return true; // Boolean + } + } + return false; // Boolean + } + }); +})(); + +} |