A button that asks for confirmation before performing an action

See the element page: https://idanen.github.com/paper-confirm-button

1. Import the element

<link rel="import" href="bower_components/paper-confirm-button/paper-confirm-button.html"/>

2. Use the <paper-confirm-button></paper-confirm-button> in your page and add an action to be done once user confirms:

<paper-confirm-button id="confirm">Action!</paper-confirm-button>
<script>
  let confirm = document.querySelector('#confirm'),
      action = ev => console.log('confirmed!');
  confirm.addEventListener('action-confirmed', action);
  confirm.addEventListener('action-canceled', ev => console.log('Canceled by user'));
</script>

First, make sure you have the Polymer CLI installed. Then run polymer serve to serve your application locally.

$ polymer serve

$ polymer build

This will create a build/ folder with bundled/ and unbundled/ sub-folders containing a bundled (Vulcanized) and unbundled builds, both run through HTML, CSS, and JS optimizers.

You can serve the built versions by giving polymer serve a folder to serve from:

$ polymer serve build/bundled

$ 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.