Instance of Paper elements in dart

Question

How can I get an instance to the paper-input element below?

HTML file:

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Answer 1

You run into how to implement a main function in polymer apps

When you do it like shown below or inside a Polymer element (attached() after super.attached() or in some click or other event handler (when the element is properly initialized)

main() {
  initPolymer().run(() {
    // code here works most of the time
    Polymer.onReady.then((_) {     
      // some things must wait until onReady callback is called
      // for an example look at the discussion linked below

      PaperInput _subject = querySelector('#subject');
    });
  });
}