Alejandro Veintimilla
  • Member for 3 years, 10 months
  • Last seen more than a month ago
1 answers
3 votes
1k views
Web3.py Could not transact with/call contract function, is contract deployed correctly and chain synced?
1 answers
2 votes
76 views
Solidity. Find whether a key exists in a mapping. Then get its value
1 answers
2 votes
1k views
2 bookmarks
Proof of stake. What is liveness?
1 answers
1 votes
635 views
web3py error while interacting with smart contract 'message': 'execution error: revert', 'code': -32000
2 answers
1 votes
233 views
No events where emmited. Why?
0 answers
1 votes
275 views
How to sign a transaction and send data to Infura using Metamask
1 answers
1 votes
35 views
How does array.length-- work?
1 answers
1 votes
546 views
Truffle js test. Test not really testing
1 answers
1 votes
910 views
Truffle js test a call with arguments
1 answers
1 votes
365 views
Solidity. Truffle test not passing "expected { _events: {},..." to equal
0 answers
1 votes
28 views
Proof of Stake how many blocks are proposed each round
1 answers
0 votes
329 views
Nothing happens whe I run truffle test
2 answers
0 votes
147 views
Need to understand the use of super._mint in this 721 token contract
0 answers
0 votes
19 views
Get Metamask address returns undefined
1 answers
0 votes
1k views
1 bookmarks
Connect web3.py with Ganache
1 answers
0 votes
36 views
Truffle test. Convert '0x0000000000000000' to zero. Assert it doesn't exist
1 answers
0 votes
79 views
DeclarationError: Uninitialized storage pointer. Struct error when running truffle tests
1 answers
0 votes
233 views
Web3py how to save accounts (private keys) to databases
1 answers
0 votes
194 views
Truffle. Test .call() args . Error: invalid string value (...) at PromiEvent
1 answers
0 votes
319 views
Solidity. Concatenate and hash two strings
1 answers
0 votes
43 views
Solidity. Concatenate hash w address. TypeError: Operator + not compatible with types string memory and address payable
1 answers
0 votes
337 views
Solidity. How to add an address to a mapping
1 answers
0 votes
523 views
Check if Struct already exists in array of structs
1 answers
0 votes
282 views
Solidity. Check if key has value in mapping. Operator != not compatible with types struct
1 answers
0 votes
108 views
return array of strings
1 answers
0 votes
33 views
Solidity. Return a Sruct that lives inside an array
1 answers
0 votes
73 views
What does it mean to be 'bounded'