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Share Your Experience: Take the 2024 Developer Survey
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qbsp
  • Member for 6 years, 2 months
  • Last seen more than a month ago
36 votes
Accepted

How can I detect change in account in Metamask?

16 votes
Accepted

I've got an error while compiling.Use "constructor(...) { ... }" instead

15 votes
Accepted

Invoking events without "emit" prefix is deprecated in Transfer(msg.sender, _to, _value);

9 votes
Accepted

How to get the transaction cost in a Truffle unit test?

8 votes
Accepted

Solidity and multiple inheritance

8 votes
Accepted

Syntax: How do you require a string to be null (or anything but null)?

7 votes
Accepted

String validation solidity: alpha numeric and length

7 votes
Accepted

How do you create a simple fixed-size array?

7 votes
Accepted

How to import web3 into a React project

5 votes
Accepted

Contracts will not compile using truffle with the "emit" keyword included in front of events

5 votes
Accepted

var is deprecated / var is used in solidity documentations / removing var is throwing compile errors

5 votes

Using Web3 1.0 with React Native

5 votes
Accepted

Solidity Compiler - Error: Identifier already declared

5 votes

TypeError: web3.eth.getTransactionCount(...).then is not a function

4 votes

Can I use ether.js with truffle

4 votes
Accepted

Solidity error when encoding arguments to call a function with Bytes32 Type Parameters

4 votes
Accepted

Ganache/Web3: "Key not found in database"

4 votes

Best practice for sharing truffle build files between developers

3 votes
Accepted

How to maintain list of contributors and their contribution?

3 votes

how can I send ether and call function in truffle test?

3 votes
Accepted

Can a struct have contract instance?

3 votes

ganache-cli issues: - How to retrive old ganache-cli account once cmd window close

3 votes
Accepted

Can we use web3 on the client side only?

3 votes
Accepted

How to estimate gas for my function using web3 js only?

3 votes

Remix - stuck on creation of contract pending

3 votes
Accepted

Drizzle Contract call returns unexpected object

3 votes

What can I do with Nethereum TransactionReceipt?

3 votes
Accepted

Metamask Vs Parity. Which browser extension is good to access DAPP using browser?

3 votes

does keccak256 and sha3 reproduce the same hash ?

3 votes

Would it be profitable enough to do a Master's degree in blockchain technologies (focused on ethereum above all)?

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