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@polymer/polymer

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The Polymer library makes it easy to create your own web components. Give your element some markup and properties, and then use it on a site. Polymer provides features like dynamic templates and data binding to reduce the amount of boilerplate you need to

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<!doctype html> <!-- @license Copyright (c) 2017 The Polymer Project Authors. All rights reserved. This code may only be used under the BSD style license found at http://polymer.github.io/LICENSE.txt The complete set of authors may be found at http://polymer.github.io/AUTHORS.txt The complete set of contributors may be found at http://polymer.github.io/CONTRIBUTORS.txt Code distributed by Google as part of the polymer project is also subject to an additional IP rights grant found at http://polymer.github.io/PATENTS.txt --> <html> <head> <meta charset="utf-8"> <script src="../../../webcomponentsjs/webcomponents-lite.js"></script> <script src="../../../web-component-tester/browser.js"></script> <link rel="import" href="../../polymer.html"> </head> <body> <script> class Example { ready() {} foo() {} } Example.prototype.is = 'x-example'; suite('Polymer function w/Class', function() { test('Polymer call works with a class', function() { assert.doesNotThrow(() => Polymer(Example.prototype)); }); test('methods are copied from class input', function() { const def = customElements.get('x-example'); assert(def.prototype.ready, 'ready should be defined'); assert(def.prototype.foo, 'foo should be defined'); }); }); </script> </body> </html>