Top new questions this week:
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How to remove the inscription An unlocked wallet is holding 100% of the lp on poocoin?
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SafeERC20 is not really clear to me from Openzeppelin’s explanation. What makes safeERC20 better than normal ERC20? In what way is it safer? Wrappers around ERC20 operations that throw on failure (…
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Eddie, U around ? Would need your help again.
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In most ERC721 setApprovalForAll() implementations, to revoke approval, the mapping is set to 0, instead of deleting the entry. I wonder what happens if many users have many approvals revoked, wouldn’…
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I am new to this..but we can redeploy contract multiple times, only issue will be u will not be able to remove the old contract you deployed..it will still be there. My only concern is where the …
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I’ve digged through all the related question, but none of these worked for me. I used this repo, and replaced the contract and test file : github.com/NomicFoundation/hardhat-boilerplate EDIT …
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Below is the contract which imports another contract pragma solidity ^0.8.7; import “./SimpleStorage.sol”; contract StorageFactory { SimpleStorage[] public simpleStorageArray; …
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Greatest hits from previous weeks:
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This Q&A was spawned by the fact there’s no one good place with this information. All answers will be wikis. A few of us are going to be collaborating on this effort. Please keep one answer per …
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I’ve been seeing this pop up quite a bit recently. Scammer creates a ERC token with the name of something popular – Shiba or Kishu. Adds alot of liquidity to the pool but once you buy the token you …
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How fast should be an internet connection to mine ethereum and don’t have connection issues? What about ping? And, how many GB of data would get downloaded over a month period? I have a 250GB limit.
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I have seen people use both memory and calldata keywords when writing Solidity. Specifically, they are used when declaring function parameters that take dynamic types like ‘structs’ or ‘arrays’. When …
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In github.com/ethereum/mist/releases 0.3.6 the files are named Mist. Starting in 0.3.7 the files are named Ethereum-Wallet. Will files named Mist take over in the future, or will there be 2 …
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When someone mints on NFT on OpenSea using their own wallet as the identity of the creator, why does Null Address always appear in the NFT’s transaction history as the creator instead? and then the …
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I am a complete noob at investing. I have never bought stock or invested in anything before but I have $300 I would like to turn into Ethereum. Could someone please tell me step by step how to …
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Can you answer these questions?
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I have crafted a transaction object with only the following parameters: to, value, data, nonce & chainId. I am correctly signing this transaction with a 3rd party library. And it returns me a hex …
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I would like to generate N wallets with ether, using ethers. After that, I would like each of these wallets to interact with the functions of the contract. How can I do this? TEST describe(“Vote …
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I’m new to coding and solidiy – I’m trying to test a covered-call option smart contract in hardhat but keep getting a transaction reverted error when I try to test the transfer of ether into the …
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