bignumber.js
eslint-plugin-big-number-rules
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bignumber.js | eslint-plugin-big-number-rules | |
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16 | 4 | |
6,517 | 12 | |
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3.7 | 3.0 | |
3 days ago | 3 days ago | |
JavaScript | JavaScript | |
MIT License | MIT License |
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bignumber.js
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eslint-plugin-big-number-rules: Enforce finance-safe calculations (helps 0.1 + 0.2 really equal 0.3)
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:
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Solving the "floating point precision" problem with... floats?
This issue (well, another one in a widely used JS library) is what brought me to dig deeper into these "arbitrary precision" libraries and understand why this happens. I thought they were using rational numbers, but that's not the case. And this is what led me to think about how to solve this problem.
- COBOL: Youβre thinking about it wrong β GCN
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Web 3.0 frontend stacks in 2023
ERC20 has decimals fields and must be handled with digit awareness. I wanted to use only one library, but I used both ether.js's BigNumber and bignumber.js (for display purpose).
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Handling currency values: facts and best practices
Most programming languages ( JavaScript, PHP, Go, Python, Java, C# ) have built-in support or 3rd-party libraries for handling this data type, even though the internal implementations can differ:
- BigDecimal equivalent. What do you use?
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[AskJS] Are there numeric textbox widgets with built-in support for big numbers like decimal.js?
I'm working on a project where users will enter numbers like 9,999,999,999.99999 (up to 15 digits, up to 5 of them decimal) and we are having a problem with Numbers losing precision beyond certain number of digits (a typical issue for IEEE Standard 754 Floating Point Numbers, the 0.1 + 0.2 problem). I've solved this problem in a few projects before with the help of decimal.js or bignumber,js . In those cases, we kept user-input as strings and used a few custom-made numeric textbox widgets to accommodate this. Unfortunately, those widgets were proprietary... Now I need one again, but can't find anything. Do they exist?
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Speeding up the JavaScript ecosystem - one library at a time
Either avoid floating-point, perhaps using BigInt, or use a library like BigNumber.js. (Incidentally, I wrote an eslint plugin to enforce its use.)
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Best way to deal with excessive decimal results in calculator
To solve the problem while JavaScript waits on its own BigDecimal API, you can use something like bignumber.js to perform your calculations.
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How can i prove that 0.1 + 0.2 = 0.3 is there like a function or ANYTHING i can do to bypass this error which occurs in most programming languages
You need to use something like BigNumber.js
eslint-plugin-big-number-rules
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eslint-plugin-big-number-rules: Enforce finance-safe calculations (helps 0.1 + 0.2 really equal 0.3)
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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Speeding up the JavaScript ecosystem - one library at a time
Either avoid floating-point, perhaps using BigInt, or use a library like BigNumber.js. (Incidentally, I wrote an eslint plugin to enforce its use.)
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[AskJS] How do you deal with floats in production apps?
I wrote an eslint plugin for it.
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Become the master of your eslint with no-restricted-syntax
For example, say you want to avoid using native arithmetic in your finance calculations to avoid the infamous binary-floating-point problems. There's no way to get standard.js to warn you about that. But (warning: self promotion) an eslint plugin can be written to do that for you. :)
What are some alternatives?
jsbi-calculator - JSBI-Calculator is an IE11-compatible calculator utility to perform arbitrary (up to 18 decimals) arithmetic computation, with the help of JSBI-based BigDecimal.
eslint-plugin-simple-import-sort - Easy autofixable import sorting.
web3modal - A single Web3 provider solution for all Wallets
elephize - Typescript to PHP translation tool
abitype - Strict TypeScript types for Ethereum ABIs
proposal-decimal - Built-in decimal datatype in JavaScript
token-lists - π The Token Lists specification
kphp - KPHP β a PHP compiler
permit2 - πππ next generation token approvals mechanism
break_eternity.js - A Javascript numerical library to represent numbers as large as 10^^1e308 and as small as 10^-10^^1e308. Sequel to break_infinity.js, designed for incremental games.
jotai-form - Form atoms for Jotai
decimal.js - An arbitrary-precision Decimal type for JavaScript