Inferred Rules

While you can specify your rules in the v-validate directive, vee-validate also resolve rules for native HTML5 elements based on their constraint attributes and their type.


It would be redundant to specify v-validate="'required|email'". vee-validate will detect the input type and the required attribute and include those rules for you automatically, so you would only need to add v-validate on the input.


Disabling Inferred Rules

You can disable this feature by setting the useConstraintAttrs to false when configuring vee-validate.

Vue.use(VeeValidate, {
  useConstraintAttrs: false


Edit VeeValidate Examples

Inferred Rules Reference

This is a table of HTML attributes that is inferred as rules.

Attribute value Rule
type "email" email
type "number" decimal
type "date" date_format:YYYY-MM-DD
type "datetime-local" date_format: YYYY-MM-DDThh:mm
type "time" date_format:hh:mm or date_format:hh:mm:ss depending on the step value
type "week" date_format:YYYY-Www
type "month date_format:YYYY-MM
min val min_value:val
max val max_value:val
pattern rgx regex: rgx
required none required
maxlength "val" max: val
minlength "val" min: val


This feature does not work on custom components, only HTML5 inputs can take advantage from this feature.