Solidity Development

Hello friends I want to write a special contract and deploy it through truffle or hardhat My problem: I get a clone from the seadrop contract and execute the yarn init and ya...

Hello everyone, I am just faced with unique identifiers in solidity. In my project users should be able to register themselves and later user should be able to add a car post...

Hi all, will the solidity language still be relevant to enter blockchain development ? or will this soon change due to the slowness and difficulty of scaling ethereum ?

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Hi all, does someone know why I cant recreate the same contract using create2 after calling selfdestruct? The below is a Foundry test: // SPDX-License-Identifier: UNLICENSED...

i am trying some testing on uniswap and i get this: Your swap is expected to fail. Try increasing your slippage tolerance. Note: fee-on-transfer and rebase tokens are incompat...

How to tell if my browser/ pc is compromised or my seed phrase? Ages ago I downloaded some software and it ended up draining my wallet, not fussed as it’s my dev wallet and ...

why you should iterate over a mapping?

Wagmi ? No nuxt or sveltekit then it's another damnshell for so many scamming react garbage.

hi I started do some experiments with blockchain using python and...Also received such coins. I was interested in what I've got and tried find out what I could do with it. So...

Hi. Is it safe to do arithmetic operations with different uint? For example uint256 with uint16 or better to use one type?

does anyone knows how to simulate sell/buy/transfer using contract abi and bytecode for tokens? for example, checking taxes and dead blocks from block x - block x

Hi all, a question about EXTCODESIZE. I thought that if I deployed the same contract 2 times, they would have the same bytecode and the same extcodesize, but when trying this ...

Hey guys, who caught the recent pump on PinkSale token?

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Any generous devs with GOERLI in abondance to send me some for testing?

can I create a smartcontract with input data like string + integer and enter the data in metamask when I will execute it?

Hi, below in the modifier onlyWhileVacant, what does _; in the 2nd line do? contract HotelRoom { enum Statuses { Vacant, Occupied }; Statuses currentStatus; ad...

Hi. I'm still new to web3 development. Help me to understand the next case. I deployed my contract to the test network and I can interact with it via my dapp without any node ...