permit2
🔑🔑🔑 next generation token approvals mechanism (by Uniswap)
bignumber.js
A JavaScript library for arbitrary-precision decimal and non-decimal arithmetic (by MikeMcl)
| permit2 | bignumber.js | |
|---|---|---|
| 5 | 16 | |
| 667 | 6,527 | |
| 2.7% | - | |
| 5.1 | 3.7 | |
| 3 months ago | 8 days ago | |
| Solidity | JavaScript | |
| MIT License | MIT License |
The number of mentions indicates the total number of mentions that we've tracked plus the number of user suggested alternatives.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
permit2
Posts with mentions or reviews of permit2.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-01-29.
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Web 3.0 frontend stacks in 2023
Permit2
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Daily General Discussion - January 21, 2023
Permit2 is a non-upgradable, unowned, and open-source contract that has been deployed to the same address across Ethereum, Optimism, Arbitrum, Polygon, and Celo. To start integrating, see the developer docs and SDK.
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tokens: approve as a signature for transactions - why haven't we?
Check out uniswap’s permit2 approvals https://github.com/Uniswap/permit2
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Move tokens without ETH?
see: https://github.com/Uniswap/permit2/blob/main/src/SignatureTransfer.sol
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The Dark Side of Permits (EIP2612)
That’s exactly what Uniswap did (click). They created this central smart-contract and called it “Permit2”.
bignumber.js
Posts with mentions or reviews of bignumber.js.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-06-03.
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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: You’re thinking about it wrong – 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
What are some alternatives?
When comparing permit2 and bignumber.js you can also consider the following projects:
Permit-Phishing - The demonstration of a fake EIP2612 signature for stealing ERC20 tokens with Permit2
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.
token-lists - đź“š The Token Lists specification
web3modal - A single Web3 provider solution for all Wallets
abitype - Strict TypeScript types for Ethereum ABIs
eslint-plugin-big-number-rules - Enforce (or automatically fix) finance-safe calculations using BigNumber or similar libraries.
jotai-form - Form atoms for Jotai
jotai - đź‘» Primitive and flexible state management for React
react-hook-form - đź“‹ React Hooks for form state management and validation (Web + React Native)
permit2 vs Permit-Phishing
bignumber.js vs jsbi-calculator
permit2 vs token-lists
bignumber.js vs web3modal
permit2 vs abitype
bignumber.js vs eslint-plugin-big-number-rules
permit2 vs jotai-form
bignumber.js vs abitype
permit2 vs jotai
bignumber.js vs token-lists
permit2 vs react-hook-form
bignumber.js vs jotai-form