eslint-plugin-big-number-rules: Enforce finance-safe calculations (helps 0.1 + 0.2 really equal 0.3)

• 0.30000000000000004

  245 1,398 2.0 CSS

  Floating Point Math Examples

This is the classic example and is often cited, but there are other rare corner-cases that can eventually bite you.

• bignumber.js

  16 6,517 3.7 JavaScript

  A JavaScript library for arbitrary-precision decimal and non-decimal arithmetic

If you use floating-points for currency (instead of whole-numbers like you probably should) libraries like bignumber.js help keep your code away from the binary floating-point pitfalls of IEEE-754 which manifests in the standard JavaScript number type:

• SurveyJS

  surveyjs.io sponsored

  Open-Source JSON Form Builder to Create Dynamic Forms Right in Your App. With SurveyJS form UI libraries, you can build and style forms in a fully-integrated drag & drop form builder, render them in your JS app, and store form submission data in any backend, inc. PHP, ASP.NET Core, and Node.js.

  

• eslint-plugin-big-number-rules

  4 12 3.0 JavaScript

  Enforce (or automatically fix) finance-safe calculations using BigNumber or similar libraries.

And they did bite me, so I wrote this eslint plugin to help out a FinTech app that was experiencing a number of such bugs.

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