Style slipping away when dynamically altering CSS file with JavaScript

My webpage has a style similar to this https://i.sstatic.net/k6TGg.png

I am attempting to modify the CSS using JavaScript when a button is clicked.

This is my JavaScript code:

this.document.getElementById('style-bandle').setAttribute('href','./assets/demo/default/base/style.bundle.rtl.css');

When I click on the button, the CSS file changes. However, there is a brief moment where the styling is lost before the new CSS file loads, as shown in the second image https://i.sstatic.net/wO2kP.png.

After the CSS finishes loading, the page reverts back to its original style like the first image. How can I prevent this flash of unstyled content?

javascripthtmlcssangularjs

Answer №1

Incorporating AngulerJS into your project allows for easy manipulation of link tags within the controller:

<link rel="stylesheet" data-ng-if="filePath " data-ng-href="{{ filePath }}" />

The use of the ng-if attribute ensures that the script runs to populate the "filePath" variable before displaying the <link>. You can also set a default href value if needed.

When implementing a button, utilize the ng-click attribute in the controller instead of using onclick.

Your controller code should resemble the following:

myModule.controller('myController', ['$scope', function($scope) {
   $scope.filePath = 'pathToYourDefaultCSS.css';
   $scope.changeToDark = function() {
       $scope.filePath = './assets/demo/default/base/style.bundle.rtl.css';
   }
}]);

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