Bobo jquery filter Array grep, each, InArray, map usage and traverse JSON object [go]

There are several uses for purely recording:

jquery grep () filter Traversal array

$ (). Ready (   function () {       var array = [1,2,3,4,5,6,7,8,9];       var filterarray = $.grep (array,function (value) {           return value > 5;//filter out greater than 5       });       for (Var i=0;i<filterarray.length;i++) {           alert (filterarray[i]);       }       For (key in Filterarray) {           alert (Filterarray[key]);       }   });

jquery each() Filter Traversal array

$ (). Ready (   function () {       var anobject = {one:1,two:2,three:3};//to the JSON array each       $.each (anobject,function ( Name,value) {           alert (name);           alert (value);       });       var anarray = [' One ', ' one ', ' three '];       $.each (Anarray,function (n,value) {           alert (n);           alert (value);       });   

jquery inArray() Filter Traversal array

$ (). Ready (   function () {       var anarray = [' One ', ' one ', ' three ');       var index = $.inarray (' Both ', anarray);       alert (index);//Returns the value in the array of key values, returns 1       alert (Anarray[index]);//value is the "   );

jquery Map () filter Traversal array

$ (). Ready (   function () {       var strings = [' 0 ', ' 1 ', ' 2 ', ' 3 ', ' 4 ', ' S ', ' 6 '];       var values = $.map (strings,function (value) {               var result = new number (value);               return IsNaN (Result)? Null:result;//isnan:is not a number abbreviation           }       );       For (key in values) {           alert (Values[key]);       }   });

jquery Traversal parsing JSON object 1:

var json = [{dd: ' SB ', AA: ' Dongdong ', RE1:123},{CCCC: ' DD ', LK: ' 1qw '}];for (var i=0,l=json.length;i<l;i++) {for   (var key In Json[i]) {       alert (key+ ': ' +json[i][key]);}   }

jquery Traversal parsing JSON object 2

There is the following JSON object: Var obj ={"name": "Feng Juan", "Password": "123456″," "Department": "Technical department", "Sex": "female", "old": 30};//Traversal Method: for (Var p in obj) {   str = str+obj[p]+ ', ';   return str;}