.dev/assets/admin/js/customize/controls/switcher-control.js
const SwitcherControl = wp.customize.Control.extend( {
/**
* Runs DOM is ready
*/
ready() {
const control = this;
this.container.on( 'change', 'input:radio', function() {
control.setting.set( this.value );
} );
},
} );
export default SwitcherControl;