Polymer (library)

Last updated
Polymer
Developer(s) Google [1] and contributors [2]
Initial releaseMay 29, 2015;9 years ago (2015-05-29) [3]
Stable release
1.x 1.12.0 / 21 May 2019;5 years ago (2019-05-21) [4]
2.x2.8.0 / 24 June 2019;5 years ago (2019-06-24) [4]
Repository polymer
Written in JavaScript, HTML
Type JavaScript library
License 3-Clause BSD [5]
Website www.polymer-project.org

Polymer is an open-source JavaScript library for building web applications using Web Components. The library is being developed by Google developers and contributors on GitHub. Modern design principles are implemented as a separate project using Google's Material Design design principles.

Contents

Polymer is used by a number of Google services and websites, including YouTube, YouTube Gaming, the redesigned Google Earth (since 2017), [6] Google I/O 2015 and 2016 websites, Google Play Music, redesign of Google Sites [7] and Allo for web (until its shutdown in 2019). [8]

Other notable users include Netflix, Electronics Arts, Comcast, Nuxeo, Coca-Cola, McDonald's, BBVA, IBM, Interxion and General Electric.

History

Public development of Polymer began in November 2013 with the release of a Promises Polyfill. This steadily expanded into a web design library covering visual styling guidelines (via Material Design), data binding, and a large number of "Core" and "Paper" Web Components. Core components were originally envisioned to encompass generic functionality that would be essential to most websites, while Paper components were intended to provide more specialized components with Material Design concepts forming a key part of their design. A major milestone was reached with the release of Version 0.5, which was considered the first version of the project ready for use by early adopters. [9]

Google continued to revise the design of Polymer after the release of 0.5, with special consideration given to the performance issues a number of developers found. This culminated with the release of Polymer 1.0 in 2015, which was the first "production ready" version of the library. [10] Version 1.0 significantly improved the performance of Polymer, reducing load times by up to 7 times. [11] With version 1.0 Google split the elements from the Polymer project to clearly distinguish the elements catalog from the Polymer polyfill & webcomponents-sugaring library.

On 14–15 September 2015, Google organized a Polymer Summit in Amsterdam.

On 17–18 October 2016, Google organized a Polymer Summit in London.

On 22–23 August 2017, Google organized a Polymer Summit in Copenhagen.

On 2 May 2018, the Polymer team announced that any future development in Polymer will shift away from its two-way binding and its template system, and will focus on LitElement [12] (still part of Polymer [13] ) and one-way bindings. [14]

Features

Polymer provides a number of features over vanilla Web Components:

Usage

Polymer has begun to gain increasing recognition in the market, with spikes in use in 2015 and 2016 as documented by the website BuiltWith. [15] Special attention has been paid to its structured design process, allowing for an interoperable "Lego Block" structure. [16] LitElement was developed by the Google Chrome team as part of the Polymer project in 2018. LitElement was designed to be a lightweight and easy-to-use framework for creating web components that can be used with any front-end framework or library.

Custom elements

Custom elements can be created using ES (ECMAScript, most commonly JavaScript) modules with classes. Custom element definition comprises CSS style, HTML template of the element's local DOM, element properties, lifecycle callbacks and JavaScript methods:

import{PolymerElement,html}from'@polymer/polymer'classHelloElementextendsPolymerElement{// Define the element's templatestaticgettemplate(){returnhtml`        <style>        /* Local DOM CSS style */        </style>        <!-- Local DOM -->        Hello {{name}}!        `;}staticgetis(){return'hello-element';}// Define public API propertiesstaticgetproperties(){return{name:{type:String}};}}window.customElements.define(HelloElement.is,HelloElement);

The element defined above can be used in HTML code:

<hello-elementname="World"></hello-element>

See also

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References

  1. ↑ "AUTHORS.txt" . Retrieved 18 August 2017.
  2. ↑ "CONTRIBUTORS.txt" . Retrieved 18 August 2017.
  3. ↑ "1.0". Polymer Project. Retrieved 18 August 2017.
  4. 1 2 "Releases · Polymer/polymer". GitHub. Retrieved 4 September 2019.
  5. ↑ "polymer/LICENSE.txt at master". GitHub. Retrieved 24 April 2017.
  6. ↑ Bidelman, Eric (2017-04-18). "Mission accomplished: has been componentized. New @googleearth is built w/ #WebComponents using @polymer.pic.twitter.com/h76ztfynYy". @ebidel. Retrieved 2017-07-08.
  7. ↑ "Meet Google Drive – One place for all your files". accounts.google.com. Retrieved 2021-06-21.
  8. ↑ "Who's using Polymer?". GitHub. Retrieved 4 June 2016.
  9. ↑ "Polymer gives us a closer look at Google's Material Design UI". Android Authority. Archived from the original on 2021-08-05. Retrieved 2015-08-21.
  10. ↑ Steven Max Patterson (29 May 2015). "Google's Polymer 1.0 brings reuse and better branding to Web development". CIO. Archived from the original on 9 December 2018. Retrieved 21 August 2015.
  11. ↑ "Welcome - Polymer 1.0". Archived from the original on 2015-08-14.
  12. ↑ "Roadmap update, part 1: 3.0 and beyond".
  13. ↑ "Justin Fagnani on Twitter". Twitter. Retrieved 2018-05-14.
  14. ↑ "Roadmap update, part 2: FAQ - Polymer Project". www.polymer-project.org. Retrieved 2018-05-14.
  15. ↑ "Polymer Usage Statistics". BuiltWith. March 2019. Retrieved 30 May 2019.
  16. ↑ Allie Coyne (13 August 2015). "Inside ING Direct's new lego block app architecture". iTnews.
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