I need to validate a form field for both null and its value. Can anyone suggest how I can achieve this without writing a function on the controller?
<form name="frm">
<input type="text" ng-model="myModel" ng-required="myModel != '' || myModel != undefined || myModel != 'xxx'" />
<button ng-disabled="frm.$invalid" >Send</button>
Using just the ng-required attribute won't suffice in your situation because it only verifies if a value has been inputted. To handle this, consider using ng-required with the condition:
myModel != '' || myModel != undefinedmyModel is not equal to 'xxx', incorporate the ng-pattern directive. The suitable regex for this scenario would be: /^(xxx.+|(?!xxx).*)$/.
<form name="frm">
<input type="text" ng-model="myModel" ng-pattern="/^(xxx.+|(?!xxx).*)$/" ng-required="" />
<button ng-disabled="frm.$invalid" >Send</button>
</form>
Refer to the documentation on directives and components for input fields.
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