Filterable options based on datalist! https://www.webcomponents.org/element/NazarioLuis/filterable-options
add items="[[items]]" to pass a custom datasource
<filterable-options label="My Label" default-placeholder="Select One">
</filterable-options>First, make sure you have the Polymer CLI installed. Then run polymer serve to serve your element locally.
$ polymer serve
$ polymer test
Your application is already set up to be tested via web-component-tester. Run polymer test to run your application's test suite locally.