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Forms

The forms utility library provides a base mixin to make it easy to create form associated custom elements. Form associated custom elements enable components to integrate with form value state and validation. This creates a reliable and predictable API contract for components. This project is in the early stages of exploration. Project Source

Getting Started

API

Events

  • input emitted when the value changes as a result of a user action
  • change emitted when the user modifies and commits the element's value.
  • reset emitted when the control state was reset to its initial value
  • invalid emitted when the control is invalid

Properties

  • value contains component state
  • readonly determine if component is in readonly/non-editable
  • disabled determine if component is interactive
  • name name associated to parent form
  • noValidate getter to check if component is in a no validation state
  • form getter to get a reference to component parent form
  • willValidate determine if component validates
  • validity validity state of the component
  • validationMessage current validation message of the component
  • valueAsString stringified value of the component
  • valueAsNumber parsed number value of the component
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