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I'm wondering why string is used to define token parameters such as name, and symbol? Why can't I use any form of bytes such as bytes8 etc. I understand that it's a public parameter and non-devs wil …

If i have a list of addresses and the exact amount of tokens that I want sent to each address, how can I hardcode a transfer function to transfer the exact amount of tokens to all specific addresses i …

Is it possible to snapshot the 'balances' mapping from an old contract ? and give them free new tokens based on the amount in the mapping

This might be a very general question, though I'd like if someone could clarify on how to within a crowdsale contract use an already deployed token contract with a fixed supply. I know how to create a …

So today, A vulnerability found within the Parity walletLibrary which resulted in freezings of potentially hundreds of millions of dollars from wallets using parity multi-sig. Can someone technically …

Under the hood, what happens in an unbounded loop? let's say I'm trying to send tokens to an infinite amount of addresses and end up with an out of gas error. Will the function which executes the tran …

how would the structure for an argument to the below constructor look like in remix? constructor( uint256[5] memory _a, uint256[5] memory _b, ) public {...}

What is the rationale for choosing to use constructor input arguments over hardcoded values? and what is best practice?

If I'm wrapping functions, like below, does it make a difference whether I check the input argument in the private function or the external one? Will it save me gas cost to do it in the external one b …

How can I burn a token that already exists with no burnable functionality inside its smart contract? Can i create a new contract with a burn function and call the specific token that I want to be burn …

I'm trying to figure out a way to transfer some tokens from my address to multiple other addresses which all must receive a specific value associated with the specific address, how would I go about th …

If all tokens are distributed and no one is burning their own tokens then how can a function like below burn from total supply? can a function like this really burn other peoples tokens? function bur …

When transferring value within a function which one is best practices to do? require(refundAddresses[x].send(refunds[refundAddresses[x]])) refundAddresses[x].send(refunds[refundAddresses[x]

Why is it preferred to use require instead of if for input validation/checks of functions?

Shouldn't following function function transferOwnership(address newOwner) public onlyOwner { require(newOwner != address(0)); OwnershipTransferred(owner, newOwner); owner = newOwner; } …