User Aydin

46 votes

3 answers

23k views

How to write an optimized (gas-cost) smart contract?

asked Oct 19, 2017 at 15:03

30 votes

6 answers

32k views

Solidity: How can we write a error message in "require"?

asked Aug 23, 2017 at 9:50

21 votes

5 answers

35k views

Metamask: How to access/call deployed contract's functions using Metamask

asked Aug 29, 2017 at 16:15

17 votes

1 answer

19k views

Solidity: private vs public variables

asked Aug 30, 2017 at 11:03

10 votes

5 answers

34k views

How can I get my address via web3?

asked Sep 11, 2017 at 19:01

8 votes

2 answers

7k views

Solidity: How to get "floor" of a floating value?

asked Aug 23, 2017 at 12:45

8 votes

6 answers

1k views

What would happen if EVM didn't exist in Ethereum?

asked Sep 30, 2017 at 13:28

4 votes

3 answers

3k views

How to interact with a deployed smart contract in the real world?

asked Aug 31, 2017 at 17:26

3 votes

2 answers

2k views

Is "transfer" a transaction or a call/message?

asked Sep 29, 2017 at 13:44

3 votes

2 answers

7k views

MetaMask and Access Ethereum Private Chain from other PC in the same network (for test)

asked Oct 10, 2017 at 18:52

3 votes

1 answer

163 views

Can a Smart contract post an advert on facebook, twitter, etc?

asked Sep 11, 2017 at 15:27

3 votes

3 answers

5k views

Solidity: How to get the hash of head block in private chain?

asked Oct 18, 2017 at 16:50

3 votes

2 answers

934 views

Error: Failed account unlock attempt, is this an attack?

asked Feb 26, 2019 at 17:35

2 votes

2 answers

58 views

Is it right to say: A contract account may contain more than one contract?

asked Oct 18, 2017 at 10:38

2 votes

1 answer

713 views

Signature in Ethereum: Are all a transaction fields signed?

asked Nov 8, 2017 at 18:45

2 votes

1 answer

4k views

Truffle VS Geth, which one is better? [closed]

asked Dec 7, 2017 at 17:51

2 votes

1 answer

310 views

Will deleting DAG data remove the blockchain data too?

asked Nov 20, 2017 at 16:51

2 votes

2 answers

767 views

How to connect a computer to a private chain using Wifi and MetaMask

asked Oct 12, 2017 at 10:32

2 votes

2 answers

11k views

How to properly convert wei to Ether in a contact?

asked Oct 1, 2017 at 15:45

2 votes

0 answers

531 views

Do we have to have a fallback function in our smart contract?

asked Sep 14, 2017 at 11:24

1 vote

1 answer

2k views

Geth or truffle which one?

asked Sep 18, 2017 at 19:19

1 vote

2 answers

3k views

How can I connect my HTML user interface to my Ethereum private chain?

asked Sep 20, 2017 at 17:40

1 vote

1 answer

143 views

In a HTML user interface how can we alert user when it inserts incorrect password/address?

asked Sep 21, 2017 at 17:58

1 vote

1 answer

4k views

Using "sendTransaction" when we call a contract function

asked Sep 22, 2017 at 10:48

1 vote

1 answer

2k views

Truffle: Why is my "onlyOwner" modifier not running in truffle?

asked Aug 24, 2017 at 18:55

1 vote

1 answer

369 views

How can we make a contract account?

asked Oct 2, 2017 at 15:19

1 vote

2 answers

2k views

Do nodes need to have static IP addresses to connect to a private blockchain?

asked Oct 10, 2017 at 17:10

1 vote

1 answer

742 views

Do externally owned accounts send messages/transactions do each other? Why doesn't a contract sign its message?

asked Sep 27, 2017 at 15:23

1 vote

2 answers

1k views

What if a malicious party sends two transactions with same nonce?

asked Sep 28, 2017 at 11:07

1 vote

1 answer

357 views

Is there any recent problem with Chrome Metamask?

asked Oct 15, 2017 at 19:43

Stack Exchange Network

59 Questions

How to write an optimized (gas-cost) smart contract?

Solidity: How can we write a error message in "require"?

Metamask: How to access/call deployed contract's functions using Metamask

Solidity: private vs public variables

How can I get my address via web3?

Solidity: How to get "floor" of a floating value?

What would happen if EVM didn't exist in Ethereum?

How to interact with a deployed smart contract in the real world?

Is "transfer" a transaction or a call/message?

MetaMask and Access Ethereum Private Chain from other PC in the same network (for test)

Can a Smart contract post an advert on facebook, twitter, etc?

Solidity: How to get the hash of head block in private chain?

Error: Failed account unlock attempt, is this an attack?

Is it right to say: A contract account may contain more than one contract?

Signature in Ethereum: Are all a transaction fields signed?

Truffle VS Geth, which one is better? [closed]

Will deleting DAG data remove the blockchain data too?

How to connect a computer to a private chain using Wifi and MetaMask

How to properly convert wei to Ether in a contact?

Do we have to have a fallback function in our smart contract?

Geth or truffle which one?

How can I connect my HTML user interface to my Ethereum private chain?

In a HTML user interface how can we alert user when it inserts incorrect password/address?

Using "sendTransaction" when we call a contract function

Truffle: Why is my "onlyOwner" modifier not running in truffle?

How can we make a contract account?

Do nodes need to have static IP addresses to connect to a private blockchain?

Do externally owned accounts send messages/transactions do each other? Why doesn't a contract sign its message?

What if a malicious party sends two transactions with same nonce?

Is there any recent problem with Chrome Metamask?