javascript - Questions about Angular form validation -

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trying use ngmessages login page validation. (1) how can make sure error messages(username , password missing) displayed when user click submit button? (2) how block submit button prevent user resubmitting form. thanks

to display error message after submitting form, should <div ng-show="theform.login.$error.required && theform.$submitted"></div>

and submitting once can counter.

here created working plunker.

oops, sorry didn`t pay attention using ngmessages, hope still help


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