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Radio Group: Overview

A web component that enhances the functionality of the native <input type="radio"> element. Its purpose is to provide a way for users to check a single option amongst a set of choices.

You should use our radio inside this element.

export const main = () => html`
  <lion-radio-group name="dinos" label="What are your favourite dinosaurs?">
    <lion-radio label="allosaurus" .choiceValue=${'allosaurus'}></lion-radio>
    <lion-radio label="brontosaurus" .choiceValue=${'brontosaurus'}></lion-radio>
    <lion-radio label="diplodocus" .choiceValue=${'diplodocus'}></lion-radio>
  • Make sure that to use a name attribute as it is necessary for our form's serialization result.
  • If you have many options for a user to pick from, consider using our select instead.


Since it extends from our fieldset, it has all the features a fieldset has.

  • Get or set the checked value of the group:
    • modelValue (default) - checkedValue()
    • formattedValue - formattedValue()
    • serializedValue - serializedValue()


npm i --save @lion/ui
import { LionRadioGroup, LionRadio } from '@lion/ui/radio-group.js';
// or
import '@lion/ui/define/lion-radio-group.js';
import '@lion/ui/define/lion-radio.js';