Just a quick question:
Can someone explain why the summary class is able to be directly added to the <span> element, but not the ng-classes onto the <form> tag?
Could it be because the ng-classes are dynamically generated at runtime? What rules should we follow in this case?
Here's the correct way to use ng-class:
<span class="summary" ng-class="{ 'ng-valid': myForm.$valid, 'ng-invalid': !myForm.$valid }">...</span>
If you still prefer your original method, here is how you can do it:
<span class="summary {{ myForm.$valid ? 'ng-valid' : 'ng-invalid' }}">...</span>
For future reference, please paste code instead of images when seeking help on platforms like stackoverflow. It will make it easier for others to assist you.
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