User Rudrika

4 votes

1 answer

4k views

How can I push data to array when using mapping (address => address[]) mappingName?

asked Apr 30, 2019 at 12:20

3 votes

2 answers

2k views

What are the difference between _from, _spender and _to address in Ethereum in Solidity?

asked Nov 16, 2018 at 6:43

3 votes

1 answer

326 views

What does the assert() indicate here?

asked Feb 5, 2019 at 4:44

2 votes

2 answers

2k views

Is there any testnet faucet for ETC Ethereum Classic Coin?

asked Aug 21, 2019 at 12:50

2 votes

0 answers

364 views

Web3 method getTransactionReceipt() does not return token transfer value for particular token transaction

asked Sep 19, 2019 at 5:48

1 vote

2 answers

4k views

Filters object not working for web3.eth.contract getPastEvents() method

asked Aug 30, 2019 at 11:20

1 vote

1 answer

85 views

Is Egretia (EGT) is still Ethereum Token? Or It has been moved as a Coin to its own Blockchain?

asked Sep 18, 2019 at 5:07

1 vote

0 answers

21 views

Is it possible to do vote and participate in crowd-sale using Forwarder address?

asked Apr 13, 2019 at 5:36

1 vote

1 answer

400 views

I want to withdraw amount from Receiver Contract's tokenFallback() function in ERC223 how to implement this scenario?

asked Feb 7, 2019 at 5:51

1 vote

1 answer

168 views

how to change approveAndCall() function for upgraded compiler version of solidity 0.5.1 from 0.4.6?

asked Feb 28, 2019 at 7:28

1 vote

2 answers

223 views

What should I input to these parameters in my MultiSigWallet Contract's function?

asked Jan 24, 2019 at 11:42

1 vote

1 answer

265 views

What are the correct steps to make connection and communication within one Node by creating Private Network in windows?

asked Dec 10, 2018 at 10:24

1 vote

1 answer

113 views

What is the main use and purpose of Upgraded Standard Token?

asked Dec 24, 2018 at 6:22

1 vote

1 answer

119 views

Why is the totalSupply of this token statically initialized to 5500000000?

asked Jan 1, 2019 at 7:38

1 vote

2 answers

1k views

What is the main use of approveAndCall() function and _extraData?

asked Jan 2, 2019 at 11:06

1 vote

1 answer

111 views

For Recipient how do I store Sender's account address and Password of Recipient's own account in hashed from?

asked Jan 3, 2019 at 9:56

0 votes

1 answer

3k views

How to convert plain text string variable to bytes32 variable? And how to store bytes32 in one variable after converting? [duplicate]

asked Jan 7, 2019 at 6:43

0 votes

1 answer

70 views

How to make transaction of some ether in Buyer Seller type of contract?

asked Jan 8, 2019 at 10:06

0 votes

1 answer

58 views

Struct and Mapping input value error of Invalid Opcode while calling setSeller() to store multiple seller's addresses

asked Jan 9, 2019 at 12:03

0 votes

1 answer

23 views

How do I get product/parcelID from particular Assigned address using struct and mapping?

asked Jan 12, 2019 at 5:39

0 votes

1 answer

76 views

Does MultiSig wallet's function follows any Token Standard i.e ERC223?

asked Jan 17, 2019 at 11:11

0 votes

0 answers

79 views

Working with 0.4.4 version of solidity, still got error, "Member 'transfer' not found or not visible after argument-dependent lookup in address."

asked Jan 18, 2019 at 5:00

0 votes

1 answer

62 views

Error in Forwarder creation in MultiSig Wallet

asked Jan 21, 2019 at 13:03

0 votes

0 answers

982 views

Invalid implicit conversion from bytes32 to bytes memory requested

asked Jan 22, 2019 at 6:21

0 votes

1 answer

2k views

What is BlackList and why it is used in Tether Token Smart Contract? And what is the use of Pause and Unpause in Tether?

asked Dec 19, 2018 at 6:57

0 votes

1 answer

479 views

How to setup Testnet in Windows?

asked Nov 29, 2018 at 10:00

0 votes

0 answers

117 views

Got Gas Estimation failed error every time, at the time of execution of MultiSig wallet contract. Specifically while executing sendMultiSig() function

asked Jan 29, 2019 at 13:03

0 votes

1 answer

115 views

ERC223 Token doesn't transfer while working with data field in transfer() function

asked Feb 5, 2019 at 10:02

0 votes

1 answer

284 views

Why we use 1000 to divide our fees?

asked Mar 6, 2019 at 14:01

0 votes

1 answer

248 views

Is there any Reentrancy attack in given code snippet? If yes then how can I fix it?

asked Mar 14, 2019 at 7:52

Stack Exchange Network

43 Questions

How can I push data to array when using mapping (address => address[]) mappingName?

What are the difference between _from, _spender and _to address in Ethereum in Solidity?

What does the assert() indicate here?

Is there any testnet faucet for ETC Ethereum Classic Coin?

Web3 method getTransactionReceipt() does not return token transfer value for particular token transaction

Filters object not working for web3.eth.contract getPastEvents() method

Is Egretia (EGT) is still Ethereum Token? Or It has been moved as a Coin to its own Blockchain?

Is it possible to do vote and participate in crowd-sale using Forwarder address?

I want to withdraw amount from Receiver Contract's tokenFallback() function in ERC223 how to implement this scenario?

how to change approveAndCall() function for upgraded compiler version of solidity 0.5.1 from 0.4.6?

What should I input to these parameters in my MultiSigWallet Contract's function?

What are the correct steps to make connection and communication within one Node by creating Private Network in windows?

What is the main use and purpose of Upgraded Standard Token?

Why is the totalSupply of this token statically initialized to 5500000000?

What is the main use of approveAndCall() function and _extraData?

For Recipient how do I store Sender's account address and Password of Recipient's own account in hashed from?

How to convert plain text string variable to bytes32 variable? And how to store bytes32 in one variable after converting? [duplicate]

How to make transaction of some ether in Buyer Seller type of contract?

Struct and Mapping input value error of Invalid Opcode while calling setSeller() to store multiple seller's addresses

How do I get product/parcelID from particular Assigned address using struct and mapping?

Does MultiSig wallet's function follows any Token Standard i.e ERC223?

Working with 0.4.4 version of solidity, still got error, "Member 'transfer' not found or not visible after argument-dependent lookup in address."

Error in Forwarder creation in MultiSig Wallet

Invalid implicit conversion from bytes32 to bytes memory requested

What is BlackList and why it is used in Tether Token Smart Contract? And what is the use of Pause and Unpause in Tether?

How to setup Testnet in Windows?

Got Gas Estimation failed error every time, at the time of execution of MultiSig wallet contract. Specifically while executing sendMultiSig() function

ERC223 Token doesn't transfer while working with data field in transfer() function

Why we use 1000 to divide our fees?

Is there any Reentrancy attack in given code snippet? If yes then how can I fix it?