User zak100

14 votes

2 answers

10k views

What is a function selector?

asked Jun 29, 2019 at 4:47

5 votes

3 answers

2k views

What is meant by on-chain randomness? What is the difference between on-chain and off-chain operations in the context of randomness?

asked May 30, 2020 at 4:50

5 votes

1 answer

4k views

Remix IDE: What is the purpose of Calldata and Transact Tab

asked Feb 11, 2020 at 0:09

5 votes

1 answer

5k views

Why Remix IDE asks for CallData and what value we have to give? [duplicate]

asked Feb 14, 2020 at 0:37

4 votes

1 answer

2k views

Compilation error using SafeMath

asked Jun 11, 2019 at 15:29

4 votes

1 answer

2k views

Reentrancy Attack in a Smart contract

asked Sep 24, 2018 at 23:57

3 votes

2 answers

2k views

Error: Explicit type conversion not allowed from "int_const 11111" to "bytes32"

asked Sep 15, 2019 at 3:25

3 votes

1 answer

3k views

Truffle Console: Estimate Gas Cost of a function

asked Feb 16, 2021 at 5:30

3 votes

1 answer

137 views

Executing reentrancy on Truffle Console: attacker not stealing 5 ether , why only 2 reentrant calls?

asked May 22, 2021 at 17:28

2 votes

2 answers

902 views

Unable to upgrade Truffle

asked Sep 5, 2020 at 3:20

2 votes

1 answer

1k views

call: Warning: Unused local variable

asked Jun 22, 2019 at 18:08

2 votes

2 answers

2k views

Syntax Error: Type tuple(bool,bytes memory) is not implicitly convertible to expected type bool

asked Jun 22, 2019 at 19:01

2 votes

1 answer

376 views

How to install Oyente on Windows 10?

asked Dec 15, 2018 at 1:23

2 votes

1 answer

244 views

EVM is sandboxed program execution environment

asked Nov 17, 2019 at 5:25

2 votes

2 answers

2k views

Why does a miner still pay gas for a reverted transaction?

asked Jan 28, 2020 at 0:53

2 votes

1 answer

16 views

Truffle console: How to print uint array

asked Aug 6 at 3:13

1 vote

1 answer

2k views

SyntaxError: Source file requires different compiler version

asked Dec 15, 2018 at 0:37

1 vote

1 answer

61 views

Was throw part of DAO (attacked) code?

asked Jan 23, 2020 at 21:32

1 vote

1 answer

1k views

struct initialization

asked Mar 10, 2020 at 18:45

1 vote

2 answers

491 views

Correct syntax for require required

asked Mar 10, 2020 at 20:09

1 vote

1 answer

634 views

converting keccak from old version: pragma solidity 0.4.19; [duplicate]

asked Mar 21, 2020 at 5:11

1 vote

1 answer

3k views

Error Truffle Console: web3.fromWei is not a function

asked Jun 18, 2020 at 13:42

1 vote

1 answer

858 views

Blockhash: Register the block number

asked Jun 1, 2020 at 21:54

1 vote

1 answer

904 views

Remix IDE: How to get rid of the stated warning message on the online Remix IDE

asked Dec 18, 2018 at 5:20

1 vote

1 answer

1k views

How to find out the number of blocks in Ganache?

asked Oct 16, 2018 at 3:43

1 vote

0 answers

209 views

Remix: Potentially should be constant but is not.

asked Nov 4, 2018 at 19:52

1 vote

1 answer

3k views

Infinite Gas Requirement: Compiling a simple contract on Remix

asked Nov 5, 2018 at 23:51

1 vote

1 answer

297 views

Contracts are “instantiated” by the account creating transaction?

asked Sep 23, 2018 at 21:39

1 vote

2 answers

200 views

What is the purpose of ISZERO?

asked Jun 1, 2019 at 0:34

1 vote

1 answer

112 views

mishandled exception: can't understand research paper content

asked Jun 5, 2019 at 18:59

Stack Exchange Network

163 Questions

What is a function selector?

What is meant by on-chain randomness? What is the difference between on-chain and off-chain operations in the context of randomness?

Remix IDE: What is the purpose of Calldata and Transact Tab

Why Remix IDE asks for CallData and what value we have to give? [duplicate]

Compilation error using SafeMath

Reentrancy Attack in a Smart contract

Error: Explicit type conversion not allowed from "int_const 11111" to "bytes32"

Truffle Console: Estimate Gas Cost of a function

Executing reentrancy on Truffle Console: attacker not stealing 5 ether , why only 2 reentrant calls?

Unable to upgrade Truffle

call: Warning: Unused local variable

Syntax Error: Type tuple(bool,bytes memory) is not implicitly convertible to expected type bool

How to install Oyente on Windows 10?

EVM is sandboxed program execution environment

Why does a miner still pay gas for a reverted transaction?

Truffle console: How to print uint array

SyntaxError: Source file requires different compiler version

Was throw part of DAO (attacked) code?

struct initialization

Correct syntax for require required

converting keccak from old version: pragma solidity 0.4.19; [duplicate]

Error Truffle Console: web3.fromWei is not a function

Blockhash: Register the block number

Remix IDE: How to get rid of the stated warning message on the online Remix IDE

How to find out the number of blocks in Ganache?

Remix: Potentially should be constant but is not.

Infinite Gas Requirement: Compiling a simple contract on Remix

Contracts are “instantiated” by the account creating transaction?

What is the purpose of ISZERO?

mishandled exception: can't understand research paper content