token-lists
bignumber.js
token-lists | bignumber.js | |
---|---|---|
5 | 16 | |
1,316 | 6,527 | |
2.1% | - | |
4.4 | 3.7 | |
23 days ago | 9 days ago | |
TypeScript | JavaScript | |
MIT License | MIT License |
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token-lists
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Web 3.0 frontend stacks in 2023
Uniswap tokenlist format
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Crypto.com DeFi Wallet Integrates Token Lists
Weโre thrilled to announce that the Crypto.com DeFi Wallet has integrated Token Lists!
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erc20 and ETH smart contract addresses
I know that in order to get the addresses of every ERC20 token, https://etherscan.io/ and https://tokenlists.org/ are the way to go.
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97.7% of tokens launched on Uniswap were scams and rug pulls
It's important to note that Uniswap is decentralized and anyone can "list" anything for trading without asking anyone or going through any process. This means there are thousands of tokens, probably millions in the future, available to trade.
Users do not see these tokens unless they actively search them out. Uniswap uses the TokenList standard (https://tokenlists.org/) and by default users only see tokens such as the top 100 projects on CoinGecko. There are many lists created by reputable players such as Aave and Gemini which cover the entire gamut of projects users want to trade without exposing end users to scam tokens.
I believe this is a good system and has worked well as having any kind of listing process or even a DAO introduces subjectivity and provides points of capture for bad actors. With an open listing process and standards like TokenLists we can say that Uniswap is truly a public good and will be around as long as we need it which provides a guaranteed way to swap any asset for any other asset no matter who created it or how controversial it is which is a good primitive for humanity to be able to rely on.
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Creating a token list modal?
This should get you there.
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: Youโre thinking about it wrong โ 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?
permit2 - ๐๐๐ next generation token approvals mechanism
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.
abitype - Strict TypeScript types for Ethereum ABIs
web3modal - A single Web3 provider solution for all Wallets
info - โน๏ธ Uniswap v1+v2 analytics
eslint-plugin-big-number-rules - Enforce (or automatically fix) finance-safe calculations using BigNumber or similar libraries.
jotai-form - Form atoms for Jotai
synpress - Synpress is e2e testing framework based on Cypress.io and playwright with support for metamask.
TypeScript - TypeScript is a superset of JavaScript that compiles to clean JavaScript output.