How to verify the enter key in the input box in angular1.x? Prevent verification from reporting errors?

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<textarea ng-model="mailInfo.messageContent" rows="10" 
    class="form-control" placeholder="1 ~ 2000" 
    style="border-radius:3px!important" required  
    ng-pattern="/^.{1,2000}$/" 
    ng-pattern-err-type="1 ~ 2000"> 
</textarea>
Validate angularjs
Mar.23,2021

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MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e48e2f-44ce6.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e48e2f-44ce6.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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