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...

Hello! Are you looking for a developer that will help you to develop your Defi project? I will create and publish a robust Defi system from PancakeSwap, UniSwap V2 / V3 ...

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 ?

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 ...

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...

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

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...

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 ...

why you should iterate over a mapping?

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

Hello, guys, I'm learning solidity/deploying smartr contracts, using free infura package. And I'm wondering when I will need to pay for usage? I mean what is the most comming ...

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

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

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

Assuming you call an external function in a contract, can the contract call another external function it has by calling itself? ... (I'm working with ERC2535 i promise i'm not...

Hello everyone how are you today hope always good,sorry can i ask here about adding liquidity in pancakeswap issued how to i can add liquidity in pancakeswap for launch some p...

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 ...

Hi, who can explain next situation? We sent accidentally tokens WBNB to UniswapV2 like router, then some bot make tnx and withdraw this balance from router.. Anybody knows how...