decimal.js
big.js
decimal.js | big.js | |
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22 | 9 | |
6,146 | 4,679 | |
- | - | |
0.0 | 0.0 | |
21 days ago | about 1 year ago | |
JavaScript | JavaScript | |
MIT License | MIT License |
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decimal.js
- Floats Are Weird
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Decoding Why 0.6 + 0.3 = 0.8999999999999999 in JS and How to Solve?
ii) Third-Party Libraries There are various libraries like math.js, decimal.js, big.js that solve the problem. Each library functions according to its documentation. This approach is comparatively better.
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Front-End Dilemmas: Tackling Precision Problems in JavaScript with Decimal.js
Desperate for a solution, I stumbled upon Decimal.js, a JavaScript library that provides arbitrary-precision decimal arithmetic. I was intrigued, so I decided to give it a try.
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Rant - Javascript should be able to do simple f**king math by now
I too wish JS had a dedicated Decimal Type, but there is plenty of 3rd party libraries available like decimal.js
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The Last Breaking Change | JSON Schema Blog
For your particular example though, if we keep in mind that the input data to be validated is JSON-serializable, only a string could possibly accommodate the precision expected of a decimal from among the JSON-serializable JS primitives. You could use one or more regex patterns to describe the allowable permutations. The resultant schema would be cross-platform since it doesn't use custom keywords - nice! You can also use unions if you want to say that integers, NaN, and Infinity are also allowed per the docs there.
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Javascript precision with significant zeros
i've used Decimal.js to account for floating point issues in JS before. maybe this will help? I realize its not native and is a 3rd party lib - but its intent is to handle floating point issues and precision. That kinds sounds like the tree you're barking up right now. maybe it will help.
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I'm too afraid to ask
In the example provided, the name of the library is literally Decimal.js: https://mikemcl.github.io/decimal.js/
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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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Show HN: I made a web-based notepad with a built in unit calculator
Looks good! I love the idea of the embedded calculator
I noticed that it doesn't handle remainder/modulo (%) equations:
"10 % 2" results in: "Left hand side of addition cannot be a percentage."
It does look like decimal.js can handle that: https://mikemcl.github.io/decimal.js/#mod
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Refe...
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[AskJS] How do you deal with floats in production apps?
https://github.com/MikeMcl/decimal.js/ great library
big.js
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Decoding Why 0.6 + 0.3 = 0.8999999999999999 in JS and How to Solve?
ii) Third-Party Libraries There are various libraries like math.js, decimal.js, big.js that solve the problem. Each library functions according to its documentation. This approach is comparatively better.
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Working with Currency Values in TypeScript
For financial applications, APIs commonly return currency values, balances, stock/currency positions, and other amounts as strings. The best way I've found to deal with this is to use a library like big.js.
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Working with extremely large numbers?
Just for fun, using javascript library:
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How are you handling your money?
Another different approach maybe to have the money represented in the decimal in your database at the decimal places of the currency with the highest decimal point you are going to be dealing with for example using Decimal(n, 2) in case of fiat, and perform your calculations in arbitrary-precision Decimal type. In javascript, using libraries like Big.js , Decimal.js will be of help.
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Made my first JavaScript project, the calculator!
With that said, using a library like big.js will solve both this and the potentially unsafe eval use:
- Ask HN: Open-source projects that handle monetary values properly
- Is there a way to monitor the price on pancake swap through an API?
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Why is 7.9 - 5 = 2.90000004?
It will explain this weird behavior. You have to use a special lib for precise floating point math. Here is one: big.js.
What are some alternatives?
mathjs - An extensive math library for JavaScript and Node.js
human-standard-token-abi - A JSON ABI for the Ethereum ERC 20 Token Standard
bigint-money - A Money class for high precision calculations using the ESnext bigint type.
v2-core - 🦄 🦄 Core smart contracts of Uniswap V2
0.30000000000000004 - Floating Point Math Examples
liveCalc - having fun with arithmetic
Brick\Math - Arbitrary-precision arithmetic library for PHP
eslint-plugin-big-number-rules - Enforce (or automatically fix) finance-safe calculations using BigNumber or similar libraries.
decimalize - JS decimal expressions library written in TypeScript
typebox - Json Schema Type Builder with Static Type Resolution for TypeScript
proposal-slice-notation
devtools-detect - Detect if DevTools is open and its orientation