ractive/src/virtualdom/items/Element/special/option/init.js

Next-generation DOM manipulation

import findParentSelect from 'virtualdom/items/Element/special/option/findParentSelect';

export default function initOption ( option, template ) {
	option.select = findParentSelect( option.parent );
	option.select.options.push( option );

	// If the value attribute is missing, use the element's content
	if ( !template.a ) {
		template.a = {};
	}

	// ...as long as it isn't disabled
	if ( !template.a.value && !template.a.hasOwnProperty( 'disabled' ) ) {
		template.a.value = template.f;
	}

	// If there is a `selected` attribute, but the <select>
	// already has a value, delete it
	if ( 'selected' in template.a && option.select.getAttribute( 'value' ) !== undefined ) {
		delete template.a.selected;
	}
}