e44a7e37b6
git-svn-id: https://semanticscuttle.svn.sourceforge.net/svnroot/semanticscuttle/trunk@151 b3834d28-1941-0410-a4f8-b48e95affb8f
182 lines
7.6 KiB
JavaScript
182 lines
7.6 KiB
JavaScript
if(!dojo._hasResource["dojo._base.array"]){ //_hasResource checks added by build. Do not use _hasResource directly in your code.
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dojo._hasResource["dojo._base.array"] = true;
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dojo.require("dojo._base.lang");
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dojo.provide("dojo._base.array");
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(function(){
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var _getParts = function(arr, obj, cb){
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return [
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dojo.isString(arr) ? arr.split("") : arr,
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obj || dojo.global,
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// FIXME: cache the anonymous functions we create here?
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dojo.isString(cb) ? new Function("item", "index", "array", cb) : cb
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];
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};
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dojo.mixin(dojo, {
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indexOf: function( /*Array*/ array,
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/*Object*/ value,
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/*Integer?*/ fromIndex,
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/*Boolean?*/ findLast){
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// summary:
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// locates the first index of the provided value in the
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// passed array. If the value is not found, -1 is returned.
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// description:
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// For details on this method, see:
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// <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:indexOf>
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var step = 1, end = array.length || 0, i = 0;
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if(findLast){
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i = end - 1;
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step = end = -1;
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}
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if(fromIndex != undefined){ i = fromIndex; }
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if((findLast && i > end) || i < end){
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for(; i != end; i += step){
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if(array[i] == value){ return i; }
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}
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}
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return -1; // Number
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},
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lastIndexOf: function(/*Array*/array, /*Object*/value, /*Integer?*/fromIndex){
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// summary:
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// locates the last index of the provided value in the passed array.
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// If the value is not found, -1 is returned.
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// description:
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// For details on this method, see:
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// <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:lastIndexOf>
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return dojo.indexOf(array, value, fromIndex, true); // Number
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},
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forEach: function(/*Array|String*/arr, /*Function|String*/callback, /*Object?*/thisObject){
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// summary:
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// for every item in arr, callback is invoked. Return values are ignored.
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// arr: the array to iterate on. If a string, operates on individual characters.
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// callback: a function is invoked with three arguments: item, index, and array
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// thisObject: may be used to scope the call to callback
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// description:
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// This function corresponds to the JavaScript 1.6 Array.forEach() method.
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// In environments that support JavaScript 1.6, this function is a passthrough to the built-in method.
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// For more details, see:
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// <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:forEach>
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// match the behavior of the built-in forEach WRT empty arrs
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if(!arr || !arr.length){ return; }
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// FIXME: there are several ways of handilng thisObject. Is
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// dojo.global always the default context?
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var _p = _getParts(arr, thisObject, callback); arr = _p[0];
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for(var i=0,l=_p[0].length; i<l; i++){
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_p[2].call(_p[1], arr[i], i, arr);
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}
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},
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_everyOrSome: function(/*Boolean*/every, /*Array|String*/arr, /*Function|String*/callback, /*Object?*/thisObject){
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var _p = _getParts(arr, thisObject, callback); arr = _p[0];
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for(var i = 0, l = arr.length; i < l; i++){
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var result = !!_p[2].call(_p[1], arr[i], i, arr);
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if(every ^ result){
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return result; // Boolean
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}
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}
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return every; // Boolean
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},
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every: function(/*Array|String*/arr, /*Function|String*/callback, /*Object?*/thisObject){
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// summary:
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// Determines whether or not every item in arr satisfies the
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// condition implemented by callback.
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// arr: the array to iterate on. If a string, operates on individual characters.
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// callback: a function is invoked with three arguments: item, index, and array and returns true
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// if the condition is met.
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// thisObject: may be used to scope the call to callback
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// description:
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// This function corresponds to the JavaScript 1.6 Array.every() method.
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// In environments that support JavaScript 1.6, this function is a passthrough to the built-in method.
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// For more details, see:
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// <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:every>
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// example:
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// | dojo.every([1, 2, 3, 4], function(item){ return item>1; });
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// returns false
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// example:
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// | dojo.every([1, 2, 3, 4], function(item){ return item>0; });
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// returns true
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return this._everyOrSome(true, arr, callback, thisObject); // Boolean
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},
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some: function(/*Array|String*/arr, /*Function|String*/callback, /*Object?*/thisObject){
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// summary:
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// Determines whether or not any item in arr satisfies the
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// condition implemented by callback.
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// arr: the array to iterate on. If a string, operates on individual characters.
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// callback: a function is invoked with three arguments: item, index, and array and returns true
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// if the condition is met.
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// thisObject: may be used to scope the call to callback
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// description:
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// This function corresponds to the JavaScript 1.6 Array.some() method.
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// In environments that support JavaScript 1.6, this function is a passthrough to the built-in method.
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// For more details, see:
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// <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:some>
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// example:
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// | dojo.some([1, 2, 3, 4], function(item){ return item>1; });
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// returns true
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// example:
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// | dojo.some([1, 2, 3, 4], function(item){ return item<1; });
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// returns false
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return this._everyOrSome(false, arr, callback, thisObject); // Boolean
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},
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map: function(/*Array|String*/arr, /*Function|String*/callback, /*Function?*/thisObject){
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// summary:
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// applies callback to each element of arr and returns
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// an Array with the results
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// arr: the array to iterate on. If a string, operates on individual characters.
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// callback: a function is invoked with three arguments: item, index, and array and returns a value
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// thisObject: may be used to scope the call to callback
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// description:
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// This function corresponds to the JavaScript 1.6 Array.map() method.
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// In environments that support JavaScript 1.6, this function is a passthrough to the built-in method.
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// For more details, see:
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// <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:map>
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// example:
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// | dojo.map([1, 2, 3, 4], function(item){ return item+1 });
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// returns [2, 3, 4, 5]
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var _p = _getParts(arr, thisObject, callback); arr = _p[0];
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var outArr = (arguments[3] ? (new arguments[3]()) : []);
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for(var i=0;i<arr.length;++i){
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outArr.push(_p[2].call(_p[1], arr[i], i, arr));
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}
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return outArr; // Array
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},
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filter: function(/*Array*/arr, /*Function|String*/callback, /*Object?*/thisObject){
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// summary:
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// Returns a new Array with those items from arr that match the
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// condition implemented by callback.
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// arr: the array to iterate on. If a string, operates on individual characters.
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// callback: a function is invoked with three arguments: item, index, and array and returns true
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// if the condition is met.
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// thisObject: may be used to scope the call to callback
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// description:
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// This function corresponds to the JavaScript 1.6 Array.filter() method.
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// In environments that support JavaScript 1.6, this function is a passthrough to the built-in method.
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// For more details, see:
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// <http://developer.mozilla.org/en/docs/Core_JavaScript_1.5_Reference:Global_Objects:Array:filter>
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// example:
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// | dojo.filter([1, 2, 3, 4], function(item){ return item>1; });
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// returns [2, 3, 4]
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var _p = _getParts(arr, thisObject, callback); arr = _p[0];
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var outArr = [];
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for(var i = 0; i < arr.length; i++){
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if(_p[2].call(_p[1], arr[i], i, arr)){
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outArr.push(arr[i]);
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}
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}
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return outArr; // Array
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}
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});
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})();
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}
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