@polymer/iron-validatable-behavior
Advanced tools
Provides a behavior for an element that validates user input
##Polymer.IronValidatableBehavior
Use Polymer.IronValidatableBehavior to implement an element that validates user input.
Use the related Polymer.IronValidatorBehavior to add custom validation logic to an iron-input.
By default, an <iron-form> element validates its fields when the user presses the submit button.
To validate a form imperatively, call the form's validate() method, which in turn will
call validate() on all its children. By using Polymer.IronValidatableBehavior, your
custom element will get a public validate(), which
will return the validity of the element, and a corresponding invalid attribute,
which can be used for styling.
To implement the custom validation logic of your element, you must override
the protected _getValidity() method of this behaviour, rather than validate().
See this
for an example.
Changing the invalid property, either manually or by calling validate() will update the
aria-invalid attribute.
FAQs
Provides a behavior for an element that validates user input
The npm package @polymer/iron-validatable-behavior receives a total of 14,851 weekly downloads. As such, @polymer/iron-validatable-behavior popularity was classified as popular.
We found that @polymer/iron-validatable-behavior demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 11 open source maintainers collaborating on the project.
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