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Angular JS Interview Questions and Answers

Ques 21. How will you display inprogress revolving image to indicate that RESTful data is bing loaded?

Ans.

<div ng-show="loading">
 <img class="loading" src="portal/images/loading_32.gif" />
</div>

 $scope.loadReportData = function($http) {
 $scope.loading = true;  // start spinng the image
 $http(
   {
    method : 'GET',
    url : propertiesService.get('restPath')
      + '/myapp/portfolio/'
      + $scope.clientId
      + '/'
      + dateService
        .userToRest($scope.reportDate),
    cacheBreaker : true
   }).success(
   function(data, config) {
    $scope.reportData = data;
    portal.log('reportData: ',
      $scope.reportData);
    $scope.loading = false;   // stop spinning the image
   }).error(
   function(data, status, headers, config) {
    if(data.errorMsg != null) {
     $scope.httpError = data.errorMsg;
    }
    else {
    $scope.httpError = "Error retrieving data from " + errorService
      .getApacheErrorTitleMessage(status,
        data, config);
       }
    $scope.loading = false;  // stop spinning the image
   });

};

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