What is the best way to eliminate the ng-hide class dynamically in AngularJS?

https://i.sstatic.net/ShZ3n.pnghttps://i.sstatic.net/n7UsG.pngI need to implement the image upload feature and facing an issue

<div class="container responsiveImageSet">
  <div ng-show="imageLoader" style="text-align: center;">
    <img class="imageLoaderGif" src="images/googleLoader.gif">
  </div>
  <div class="container" >
      <span ng-repeat="imgURL in backgroundImageURL track by $index">
        <img class="uploadedImageSet" src="{{imgURL}}">
      </span>
  </div>
</div>

The problem I'm encountering is that a "ng-hide" class is dynamically added to the element which affects my functionality. I need to find a way to remove this class as it causes issues for me. Can anyone help me resolve this issue?

$scope.backgroundImageURL = [];
$scope.imageLoader = false;
$scope.uploadBackgroundImage = function(event) {
  $scope.imageLoader = true;

  //Get the value from the input field and assign into the fireabse node
  var userProductImg = $("#imgId")[0].files[0];
  var PSR = firebase.storage().ref('user/image');

  //get the date as well as put the imageURL from node
  var rn = new Date().getTime().toString();
  var task = PSR.child(rn).put(userProductImg).then(function(snapshot) {
    $timeout(function(){
      $scope.backgroundImageURL.push(snapshot.downloadURL);
      $scope.imageLoader = false;
      localStorage.setItem('userImageURL', $scope.backgroundImageURL);
    }, 0);
  })
}

Answer №1

In this scenario, my preference would lean towards using ng-if rather than ng-show.

ng-show:

With ng-show, the element's visibility is toggled by adding or removing the .ng-hide CSS class. This class sets the display style to none through AngularJS, overriding any existing styling with an !important flag.

ng-if :

The ngIf directive dynamically alters the DOM structure based on a specified {expression}. If the expression evaluates to false, the element is removed from the DOM; otherwise, a clone of the element is added back into the DOM.

It is important to utilize an expression properly:

<div ng-if="imageLoader == true" style="text-align: center;">
  <img class="imageLoaderGif" src="images/googleLoader.gif">
</div>

By implementing ng-if, you can eliminate the need for .ng-hide and have more precise control over when elements are inserted or removed, without relying on a forced !important rule for visibility manipulation.

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