decimal.js VS eslint-config-standard

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.

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.

I too wish JS had a dedicated Decimal Type, but there is plenty of 3rd party libraries available like decimal.js

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.

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.

In the example provided, the name of the library is literally Decimal.js: https://mikemcl.github.io/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?

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...

https://github.com/MikeMcl/decimal.js/ great library

eslint-config-standard

Based on your requirements and environment, answer the questions accordingly. At least with eslint version 8.0.1, you are only presented with 2 style guides: standard and XO. Personally, I prefer the standard styling guide but at any give time, it is a personal choice and as such feel free to choose any from a bunch of available options. Once all dependencies are installed, ensure that you have the following packages added as devDependencies to your project:

Hmm right, haven't found too many controversial things in https://github.com/standard/eslint-config-standard/blob/master/.eslintrc.json, besides no-semi fixed by semi-standard and comma-dangle "never" (sucks for git history, they should allow it for multiline cases https://eslint.org/docs/rules/comma-dangle#always-multiline)

ESLint plugin for StandardJS; allows you to format code as StandardJS, but clear more serious errors too.

The JS Open Source Community is filled with people grifting things like this. Quite notably, there's a linter called JS Standard Style, which actually has nothing to do with JS Standards.

It's marketed as if it was a standard, the fact that it isn't is tucked away in the readme, and also -- the entire project is just a wrapper around someones .eslintrc file, yet barely any credit is given to the ESLint devs who do all the work.

Go ahead and read the readme here, https://github.com/standard/standard. Could you genuinely tell this wasn't really a JS Standard at a glance? Could you tell this was just a config file for someone elses work? None of the donations go upstream to eslint by the way.

Hell, the actual config file is hidden inside a sub repo:

https://github.com/standard/eslint-config-standard

which has the audacity to claim

> This module is for advanced users. You probably want to use standard instead :)

It's a config file for someone elses program! Why does this library go through so much effort to hide that it's just someones config file? Why on earth is it called JS Standard Style?

The whole community is filled with slimy nonsense like this.

Eslint is the default linter. Standard is a curated list of rules with good quality.

https://github.com/standard/eslint-config-standard

I would start with that and tweak what you don't like

Well done, we managed to set up ESLint using Airbnb’s JavaScript styling guide to our newly created Next.js project. You could have used another popular styling guide like Google, Standard, or even create your own to your liking.