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Zach
  • Member for 4 years, 10 months
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12 votes
3 answers
10k views

How to automatically get user's wallet info if they are connected but NOT show the metamask pop up if they are not?

10 votes
2 answers
16k views

Can someone explain 'signing a transaction' and how its different from sending ether?

2 votes
1 answer
1k views

Trying to mint 721 tokens from external contract gives invalid opcode

2 votes
1 answer
519 views

Revert on non-fungible token, when sending external call from second contract

2 votes
1 answer
871 views

Web3 sending TX times out after 280 seconds because network lag

2 votes
1 answer
588 views

Cannot sign data using eth_signTypedData_v3 in coinbase wallet but can in every other dapp wallet?

2 votes
0 answers
1k views

Web3 error: "value out of bounds" when passing in value for smart contract call

2 votes
1 answer
2k views

Signing a message to sell NFT/token - what happens if you transfer the NFT later?

2 votes
2 answers
23k views

Metamask shows "ALERT: Transaction Error. Exception thrown in contract code" but transaction succeeds without error

1 vote
2 answers
873 views

Setting the address for a contract - within another contract

1 vote
0 answers
205 views

How to update multiple values in a mapping without a loop?

1 vote
1 answer
258 views

Finding values within an Array/Mapping based off min and max values

1 vote
3 answers
2k views

How to dynamically load contracts data with their ABI from etherscan API?

1 vote
2 answers
1k views

How do I know if this fake token is ERC20?

1 vote
1 answer
277 views

Review my token? Everything 'seems' to work on the testnet. Any issues?

0 votes
2 answers
2k views

Help using and reading Arrays[] and mappings

0 votes
1 answer
531 views

How would you generate this transaction hash?

0 votes
0 answers
402 views

Remix never returns a transaction - but everything works - why?

0 votes
1 answer
225 views

How to pass quotes inside a string via remix?

0 votes
0 answers
59 views

Get a value of a nested mapping with only one key?

0 votes
0 answers
14 views

How would you get total transactions submitted by an address to a specific smart contract?

0 votes
2 answers
42 views

Implementing Luhn's Algo in Solidity?