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A partial polyfill for the JavaScript Internationalization API, catered to SumUp's needs
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Coverage License Contributor Covenant


The ECMAScript Internationalization API provides language sensitive string comparison, number formatting, and date and time formatting. This project provides polyfills for some of the API. It mostly covers the parts that are relevant for our use cases at SumUp.


Something to get people started quickly

Table of contents


How to install this project?

# Example code to get people started


  • How do you use this?
  • If there’s a CLI, what are the commands?
  • What’s the public API of the project?

Code of conduct (CoC)

We want to foster an inclusive and friendly community around our Open Source efforts. Like all SumUp Open Source projects, this project follows the Contributor Covenant Code of Conduct. Please, read it and follow it.

If you feel another member of the community violated our CoC or you are experiencing problems participating in our community because of another individual's behavior, please get in touch with our maintainers. We will enforce the CoC.


About SumUp

SumUp logo

SumUp is a mobile-point of sale provider. It is our mission to make easy and fast card payments a reality across the entire world. You can pay with SumUp in more than 30 countries, already. Our engineers work in Berlin, Cologne, Sofia, and Sāo Paulo. They write code in JavaScript, Swift, Ruby, Go, Java, Erlang, Elixir, and more.

Want to come work with us? Head to our careers page to find out more.

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