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- directive in module ngMessages
 
Overview
ngMessageExp is the same as ngMessage, but instead of a static value, it accepts an expression to be evaluated for the message key.
Directive Info
- This directive creates new scope.
 - This directive executes at priority level 1.
 
Usage
<!-- using attribute directives -->
<ANY ng-messages="expression">
  <ANY ng-message-exp="expressionValue">...</ANY>
</ANY>
<!-- or by using element directives -->
<ng-messages for="expression">
  <ng-message when-exp="expressionValue">...</ng-message>
</ng-messages>
    Click here to learn more about ngMessages and ngMessage.
Arguments
| Param | Type | Details | 
|---|---|---|
| ngMessageExp | whenExp | expression | 
        an expression value corresponding to the message key.  | 
       
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Licensed under the Creative Commons Attribution License 4.0.
 https://code.angularjs.org/1.6.9/docs/api/ngMessages/directive/ngMessageExp