What is the functionality of ngCloak?

<html ng-app>
  <body>
    <p ng-cloak>{{foo}}</p>
  </body>
</html>

My interpretation:

  1. The HTML page is displayed.
  2. Once the DOMContentLoaded event is triggered, Angular begins bootstrapping.
  3. During the compilation phase, the ng-cloak directive hides elements with display: none !important.
  4. As part of the linking process, the display: none !important style is removed from elements with ng-cloak before re-rendering occurs.

I comprehended why elements are hidden from the start of the compile phase to the end of the link phase. However, I am curious about why they remain hidden from when the HTML loads till the compilation phase starts.

javascriptangularjsngcloak

Answer №1

If you want more information, you can check out the official documentation:

The browser will hide all html elements (and their children) with the ngCloak directive until Angular processes them and removes the attribute, making them visible.

Answer №2

In addition to the details provided in the documentation, I have experience working on websites that involve async calls for data retrieval. In such cases, I have utilized ng-cloak to prevent displaying variables that may not yet have a value until after the compilation process is complete. For instance, there are situations where the DOMContent loads before the Angular data is fully processed, and using ng-cloak helps in avoiding premature display of incomplete information. This is just one example of how ng-cloak can be beneficial, but certainly not the only one.

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