Improve this Doc View Source ngMaxlength

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< Directive components in ngAngularjs/docs/1.8/api/ng/directive/ngmaxlength

Improve this Doc View Source ngMaxlength

  1. directive in module ng


ngMaxlength adds the maxlength validator to ngModel. It is most often used for text-based input controls, but can also be applied to custom text-based controls.

The validator sets the maxlength error key if the ngModel.$viewValue is longer than the integer obtained by evaluating the AngularJS expression given in the ngMaxlength attribute value.

Note: This directive is also added when the plain maxlength attribute is used, with two differences:

  1. ngMaxlength does not set the maxlength attribute and therefore HTML5 constraint validation is not available.
  2. The ngMaxlength attribute must be an expression, while the maxlength value must be interpolated.

Directive Info

  • This directive executes at priority level 0.


  • as attribute:



Param Type Details
ngMaxlength expression AngularJS expression that must evaluate to a Number or String parsable into a Number. Used as value for the maxlength validator.


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