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26

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Random number generation in certain range

modified 6 hours ago Rob Hitchens - B9lab 30.9k

0

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2

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22

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solidity mapping struct

answered 7 hours ago Rob Hitchens - B9lab 30.9k

0

votes

0

answers

17

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sendRawTransaction insufficient funds while there is enough balance

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asked 10 hours ago G-Virus 6

0

votes

1

answer

18

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solidity

answered 7 hours ago Ismael 16.3k

0

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2

answers

12

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Transaction Ordering doubt for msg.sender.balance

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answered 6 hours ago Rob Hitchens - B9lab 30.9k

1

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1

answer

22

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where does the metamask fits in Dapps architecture?

web3js metamask dapps ethereumjs

answered 17 hours ago Yogesh - EtherAuthority.io 166

0

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0

answers

11

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Metamask transactions keep stack at the txpool of a Quorum Private Network

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asked 14 hours ago Xavi Maltas 1

1

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0

answers

14

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modified 14 hours ago Majd TL 433

0

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0

answers

19

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Auction contract privacy

solidity ether privacy anonymity

asked 20 hours ago user51821 21

0

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0

answers

11

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web3.eth.getBlock in order

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asked 18 hours ago user53449 16

0

votes

2

answers

15

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solidity contract-design events

answered 21 hours ago Rob Hitchens - B9lab 30.9k

0

votes

1

answer

12

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Parity POA Smart Contract Method Always Fails

solidity remix private-blockchain parity poa

answered 17 hours ago Alex Dimitrov 11

0

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1

answer

15

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My Withdraw function doesnt work

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answered yesterday alberto 391

0

votes

1

answer

15

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Object to Hex function (like in sign transaction)

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answered yesterday goodvibration 5,368

1

vote

1

answer

23

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Is there any way to only find blocks where state changes of a contract occurred?

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answered yesterday Giuseppe Bertone 2,426

0

votes

1

answer

19

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How do I change the consensus algorithm for a network that i forked from github? [on hold]

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answered yesterday Ismael 16.3k

0

votes

1

answer

13

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Parser Error - Creating EIP20 Tokens

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answered yesterday flygoing 7,903

0

votes

1

answer

26

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Can anyone explain How smart contract gets validated?

solidity dapps

modified yesterday Suria 5

0

votes

1

answer

36

views

How to hash multiple values including array keccak256 Solidity v5.0.x and web3 'Autodetection of array types is not supported.'

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modified yesterday Senju 137

1

vote

1

answer

18

views

Block Gas Limit Doubt

gas-limit gas-estimate

answered yesterday Lauri Peltonen 6,873

1

vote

2

answers

26

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Verify if an input is a hash

solidity solidity-0.5.0

answered 2 days ago AnAllergyToAnalogy 2,205

0

votes

0

answers

12

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solcx compile_files Key error

solidity web3.py solc python

asked yesterday Chidananda Nayak 112

0

votes

0

answers

34

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Timestamp is giving wrong time in smart contract

solidity dapps

asked 2 days ago Suria 5

0

votes

1

answer

38

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Percentage calculation

solidity tokens

answered 2 days ago alberto 391

0

votes

2

answers

22

views

Split State Storage Contract

solidity contract-design dapp-design design-patterns solidity-0.5.0

answered 4 hours ago Rob Hitchens - B9lab 30.9k

2

votes

1

answer

34

views

Target addresses in Kademlia

node-discovery rlpx p2p

modified 11 hours ago Jan Telov 11

0

votes

0

answers

20

views

Web3 in the browser

web3js

asked 2 days ago pepo 111

1

vote

0

answers

31

views

exploiting keccak for random number generation?

solidity keccak randomness

asked 2 days ago unheal1337 31

0

votes

1

answer

13

views

Gas requirement of function “testCompile.showString() high: infinite”

solidity remix

answered 2 days ago Lauri Peltonen 6,873

0

votes

1

answer

26

views

Value not pushing into array inside structure

solidity dapps

answered 2 days ago Mahesh Rajput 624

1

vote

1

answer

41

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Mapping with iterating uint as identifier - multiple transactions in the same block

solidity mapping uint256

answered Jun 16 at 21:25 smarx 20.7k

0

votes

0

answers

20

views

Is there any API for ether sent transaction in ethereum without using web3.js [on hold]

ethereum-wallet-dapp

modified 2 days ago eth7 41

0

votes

0

answers

21

views

Function returns always with the same input even it is in the loop..TRUFFLE+ANGULAR 7+WEB3

solidity dapps

asked 2 days ago Suria 5

1

vote

0

answers

16

views

What do I do to deploy my ERC 20 token [on hold]

erc-20

asked 2 days ago botztoken 6

0

votes

2

answers

31

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Save all customers who buy an item online [on hold]

solidity remix

answered 2 days ago unheal1337 31

1

vote

0

answers

19

views

How to upgrade this Crowdsale contract (from DappUniverse)

solidity upgrading

asked 2 days ago Crowdsale Guy 11

0

votes

2

answers

28

views

Instantiating a contract inside another contract on behalf of some address

solidity contract-development contract-design contract-deployment contract-invocation

answered 2 days ago Lauri Peltonen 6,873

0

votes

0

answers

22

views

problem with the task function in truffle development

solidity

modified yesterday Rob Hitchens - B9lab 30.9k

0

votes

1

answer

12

views

Can I pass my mnemonic to ganache/ ganache-cli when it is starting up?

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answered 2 days ago Sanjay S B 330

0

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2

answers

20

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Cannot declare web3 object in JavaScript

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answered yesterday RazerBoy 3

-2

votes

1

answer

11

views

Can't seem to find MetaMask

metamask

answered 2 days ago Suria 5

0

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3

answers

41

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Auction contract question - Ether lock

solidity ether

modified 2 days ago biplavo 496

0

votes

1

answer

18

views

ERC20, how to calculate how many tokens for crowdsale?

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modified Jun 16 at 20:21 smarx 20.7k

-2

votes

0

answers

33

views

Gas Cost Within a Loop? Infinite With/Without State Variables: Local Var Does Not Dec Cost

gas-price

modified Jun 16 at 19:55 zak100 90

0

votes

1

answer

27

views

TRUFFE MIGRATE: Saving migration to chain.Error: Error: Error: Returned error: VM Exception while processing transaction: invalid opcode

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modified Jun 16 at 10:35 Senju 137

0

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2

answers

25

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Effective way to compare to arrays

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answered Jun 16 at 17:12 smarx 20.7k

0

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1

answer

18

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Infura Request Limitations

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answered 2 days ago Richard Horrocks 22.8k

1

vote

0

answers

15

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How to process null TransactionReceipt?

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asked Jun 16 at 17:24 Mathieu Dutour Sikiric 6

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