Find answers to your questions about Ethereum or help others by answering their Ethereum questions.
I tried to see all address using web3.eth.getAccounts() It's run perfectly. Next I tried to see the first address using web3.eth.getAccounts().then(function(accounts) {return accounts[0]}) It's also worked well. But now I...
Asked on 11/10/2021 by tithidey
1 answerif you have a mapping like:mapping (uint => bool) owned;How would you go through and update 1000 items in that mapping to set them all to true? Without using...
Asked on 11/10/2021
0 answerI use Transfer.sendFunds(Web3j, Credentials, BigDecimal, Convert.Unit) to transfer money. Usually I convert it to flowable. Flowable/RemoteCall completes when transaction is included in block (correct me if I am wrong)....
Asked on 11/10/2021 by Roman Chumachenko
1 answerHere's a simple contract:contract C { event myEvent(bool x, address y); address someAddress; function someAddressExist(){ ...
Asked on 11/07/2021 by manidos
2 answerI logged onto my ethereum classic wallet and the balance is zero. This is absolutely wrong. What do I need to do....
Asked on 11/07/2021 by Rhiannon Oaks
1 answerIm wanting to pull data from a smart contract I've loaded via user address and etherscan API for the ABI. But how would I go about programmatically adding all...
Asked on 11/07/2021
3 answerMetamask is showing an asterisk near the account balance, and the message "Balance may be outdated". Indeed the balance is outdated. This is true on all networks (Main, Ropsten, etc.)...
Asked on 11/07/2021
4 answerEthereum was withdrawn from my wallet to the wrong address. I am using metamask and decentralized wallet application.The keystore file is stored in Apple could storage.Mnemonic did not use or...
Asked on 11/07/2021
0 answerI'm having trouble understanding why people callarray.length--after deleting an element in an array (as seen in this answer and many others). Why is there need for doing so?...
Asked on 11/07/2021 by Alejandro Veintimilla
1 answerI open mine in my own private chain, and I submit the transaction at the same time. Some of the transactions do not trade hashing, and then the fair is...
Asked on 11/04/2021 by J.JACK
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