ExtJS Learning-----------Ext.array,extjs extension to an Array in JavaScript (instance)

(1) Clean

var arr = [1,2,null,3, '];alert (Ext.Array.clean (arr));//clean object: (value = = null) | | (value = = undefined) | | (!allowemptystring? value = = = ': false) | | (Ext.isarray (value) && value.length = = = 0)//result for

(2) Difference

Differencevar arr1 = [1,2,3];var arr2 = [2,5,6];alert (Ext.Array.difference (ARR1,ARR2));//Result: 1,3

(3) each

Eachvar arr = [1,2,3,4]; Ext.Array.each (arr,  function (item) {if (item = = 4) {return false;} Alert (item),//////When the function returns False when the iteration is stopped});//Result: Popup dialog box, display 1 2 3 respectively, do not display 4

(4) Erase

Erasevar arr = [1,2,3,4,5];alert (Ext.Array.erase (arr, 2, 2));//array starting from 0. Start (include) from position subscript 2, delete two elements//result: three-in-one

(5) every

Everyvar arr = [1,2,5,6,9,10];var flag = Ext.Array.every (arr, function (item) {if (item >=7) {return false;} else {return true;}}); alert (flag);//Result: false

(6) Filter

Filtervar arr = [1,2,3,4,10,18,23];var newarr = Ext.Array.filter (arr,function (item) {if (item >) {return false;} El SE {return true;}}); alert (newarr);//Result: 1,2,3,4,10

(7) Include

Includevar arr = [1,2,3,4]; Ext.Array.include (arr, 2); alert (arr);//Result: 1,2,3,4

(8) Unique

Unqiuevar arr = [1,2,3,4,5,5,4,3,2,1,1,21,23,3,3,4];alert (Ext.Array.unique (arr));//Use the JS object's attributes to remove duplicates  of the array The key of obj is not repeatable var obj = {};for (var i = 0, len = arr.length; i <len; i++) {Obj[arr[i]] = true;//Remove duplicates of the array}//alert (EXT . Encode (obj)), var uniquearr = [];for (var i in obj) {if (Obj.hasownproperty (i)) {Uniquearr.push (i);}} alert (Uniquearr);//Result: 1,2,3,4,5,21,23

ExtJS Learning-----------Ext.array,extjs extension to an Array in JavaScript (instance)