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I’ve always been into building performant and accessible sites, but lately I’ve been taking it extremely seriously. So much so that I’ve been building a tool to help me optimize and monitor the sites that I build to make sure that I’m making an attempt to offer the best experience to those who visit them. If you’re into performant, accessible and SEO friendly sites, you might like it too! You can check it out at Optimize Toolset.


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JS language shims used by Airbnb.




airbnb-js-shims Version Badge

JS language shims used by Airbnb.

Just require/import airbnb-js-shims, and the environment will be shimmed.

import 'airbnb-js-shims';

Included shims

Targeting versions

If you do not need to support older browsers, you can pick a subset of ES versions to target. For example, if you don't support pre-ES5 browsers, you can start your shims with ES2015 by requiring/importing the specific target file. This will shim the environment for that version and upward.

import 'airbnb-js-shims/target/es2015';

Included targets

  • airbnb-js-shims/target/es5 (default)
  • airbnb-js-shims/target/es2015
  • airbnb-js-shims/target/es2016
  • airbnb-js-shims/target/es2017
  • airbnb-js-shims/target/es2018
  • airbnb-js-shims/target/es2019
  • airbnb-js-shims/target/es2020