Angular JS Implementation multi-Select all

Front-end Code

1    <ulclass= "List Checkstyle">2             <Liclass= "Item Item-checkbox">3                 <labelclass= "checkbox checkbox-balanced">4                     <inputtype= "checkbox"Ng-model= "Master"Ng-click= "All (Master,tesarry)">5                 </label>6 Select All7             </Li>8             <Liclass= "Item Item-checkbox"ng-repeat= "Z in Tesarry">9                 <labelclass= "checkbox checkbox-balanced">Ten                     <inputID={{z.userid}}type= "checkbox"Ng-model= "X"ng-checked= "Master"Ng-click= "Chk (z,x)"> One                 </label> A                 <imgsrc="#" /> -                 <H2>{{Z.name}}</H2> -             </Li> the             </ul>

Back-end Code

$scope. chosearr=[];//defines the array to hold the front-end display    varStr= "";//    varFlag= ";//if you clicked Select All, yes for a$scope. x=false;//not selected by default$scope. All=function(C,V) {//Select All        if(c==true) {$scope. x=true; $scope. Chosearr=v; }Else{$scope. x=false; $scope. Chosearr=[]; } Flag= ' A ';    }; $scope. CHK=function(z,x) {//single or multiple selection        if(flag== ' a ') {//operate on a full selection basisstr = $scope. Chosearr.join (', ') + ', '; }        if(x = =true) {//selectedstr = str + z.userid + ', '; } Else{str= str.replace (Z.userid + ', ', ');//uncheck} $scope. Chosearr= (Str.substr (0, Str.length-1)). Split (', ');    }; $scope.Delete=function() {//Operation Curd        if($scope. chosearr[0]== "" | | $scope. chosearr.length==0) {//prompt when no one is selectedAlert ("Please select at least one piece of data in action!") ")            return;        };  for(vari=0;i< $scope. chosearr.length;i++){            //alert ($scope. chosearr[i]);Console.log ($scope. chosearr[i]);//traverse the selected ID        }    };

Angular JS Implementation multi-Select all