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haxerl
  • Member for 3 years, 3 months
  • Last seen more than a week ago
  • Hanoi, Vietnam
7 votes
Accepted

Error: HelloWorld has not been deployed to detected network (network/artifact mismatch)

4 votes

Invalid implicit conversion from address to address payable requested

3 votes

Doubt in terminologies used in Ganache Interface

3 votes

how to send a transaction with web3 and metamask

3 votes
Accepted

What should I prepare for the coming ETH 2.0 upgrade as a Dapps developer?

3 votes
Accepted

How to do RSA signature verification based on eip-198

2 votes

private key vs seed

2 votes

What's the relative advantage of using remix.ethereum.org over studio.ethereum.org?

2 votes

How get network ID with ethers.js?

2 votes

How can I securely generate a random number in my smart contract?

2 votes

What is the purpose of ISZERO?

2 votes
Accepted

EIP155. How chainId works?

2 votes
Accepted

Smart contract function call from many accounts

2 votes

Can I trigger the execution of a js file from a smart contract?

1 vote

After compiling contract, there is no build directory inside project directory?

1 vote

Cannot able to call the contract inside the truffle console

1 vote

Network propagation delay and forks in Proof of Stake?

1 vote

User anonymity while submitting data in smart contract

1 vote

How to deploy truffle project on web server?

1 vote
Accepted

Node Discovery Protocol - Node Table entries

1 vote

How to check if an address is an active contract in Vyper?

1 vote

ParserError: Expected pragma

1 vote

Is the gast cost of '<=' lower than the gas cost of '<'?

1 vote
Accepted

Web3 CDN error: regeneratorRuntime is not defined

1 vote

ERC721 - How to create many ERC721 tokens at a time

1 vote

How to validate proper implementation of ERC-1155 contract?

1 vote

Why EVM blockchain can't beat the credit card system in E-commerce

1 vote

TypeError: Cannot create property 'constant' on number '123' web3js

1 vote
Accepted

ParserError: Expected primary expression - address payable - payable()

1 vote
Accepted

truffle deployment: not sure about 2_deploy_contracts.js for 2 contracts