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goodvibration
  • Member for 6 years, 11 months
  • Last seen more than 3 years ago
52 votes
Accepted

I see no way to obtain the return value of a non-view function (ethers.js)

51 votes
Accepted

how to catch "revert" error in truffle test javascript?

24 votes
Accepted

What does the function "abi.encodeWithSelector(bytes4 selector, ...) returns (bytes memory)" do exactly?

19 votes
Accepted

TypeError: Invalid type for argument in function call. Invalid implicit conversion from contract to address requested

19 votes
Accepted

How to infer token price from ethereum blockchain UniSwap data?

16 votes
Accepted

How to check currently installed web3 version?

16 votes
Accepted

how to get erc20 token balance using web3

15 votes
Accepted

How to use bignumbers in truffle tests?

15 votes
Accepted

What is the use case of transferFrom function in ERC20 token contract?

14 votes

Setting the initial balance of an account in ganache-cli

13 votes
Accepted

Truffle Deployment Error: Invalid number of parameters for "undefined". Got 1 expected 0!

11 votes
Accepted

How do events influence a transaction's gas?

11 votes

Does it make a difference to index an event with one parameter?

10 votes
Accepted

Uniswap transaction fails with TransferHelper: TRANSFER_FROM_FAILED

9 votes

How to set the timeout for truffle test's before block?

9 votes
Accepted

What is a function selector?

9 votes
Accepted

Can anyone explain how bytes memory can be converted to address type in solidity

9 votes
Accepted

Data location can only be specified for array, struct or mapping types, but "memory" was given

9 votes
Accepted

Accepting Dai or an any ERC20 token as a payment

8 votes

Handling decimals in somewhat complex math

8 votes
Accepted

Web3 Contract.balanceOf is not a function

8 votes
Accepted

Is it safe to commit truffle build files to Github (open source)?

8 votes
Accepted

Can solidity have negative numbers?

8 votes
Accepted

how to decode log event of my transaction log?

7 votes
Accepted

Is there a drawback of setting a too high gas limit for a transaction?

7 votes

Solidity - How do I generate a random address

7 votes
Accepted

How do I check for the existence of a function in Solidity when I have an address that might implement that function?

7 votes
Accepted

What is the purpose of uint256(-1)

7 votes
Accepted

How can I use the mathematical constant e in Solidity?

6 votes
Accepted

Getting error as Member "balance" not found or not visible after argument-dependent lookup in contract Lottery

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