Solidity Forum - The place for all Solidity developers, tool builders ...
2024年2月4日 · The place to discuss design and usage of and changes to the Solidity programming language.
solidity - `external` vs `public` best practices - Ethereum Stack …
2017年7月4日 · pragma solidity 0.8.14; contract Test1 { uint a; function test() external{ a = 1; } } In this case I have tested a transaction that change the contract state of the contract and the execution cost is 43300. pragma solidity 0.8.14; contract Test2 { uint a; …
solidity - What is address[]? - Ethereum Stack Exchange
2022年12月1日 · In Solidity, address[] is an array of type address. An address in Solidity is a data type that represents a 20-byte Ethereum address. Arrays in Solidity are a type of data structure that allows you to store and manage a collection of data. In this case, an address[] array would be used to store a collection of Ethereum addresses.
Are Generics no longer planned? - Solidity Forum
2024年10月10日 · I think being more public would really help curb some of the Dunning Kruger me and other people suffer from when it comes to discussing the technical challenges associated with some of the issues regarding Solidity (“oh but why don’t we have generics yet”, “why didn’t the just go fix stack too deep”, “why is via IR so slow ...
What are the virtual and override keywords in Solidity?
2019年12月27日 · As of Solidity 0.6.0, the keywords virtual and override are available natively in Solidity for function overriding. The purpose of these keywords is to be more explicit when overriding a function. Base functions can be overridden by inheriting contracts to change their behavior if they are marked as virtual.
Newest 'solidity' Questions - Ethereum Stack Exchange
Solidity is a contract-oriented, high-level language whose syntax is similar to that of JavaScript and it is designed for writing smart contracts in Ethereum to run on the EVM. Solidity is statically typed, supports inheritance, libraries and complex user-defined types among other features.
solidity - How to initialize an empty array and push items into it ...
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solidity - Convert wei to ether in contract - Ethereum Stack Exchange
2018年1月18日 · The base unit for currency in Solidity is Wei. That means if you're dealing with balances, and you don't specify a unit, then it defaults to Wei. That said, you can specify units explicitly: wei, finney, szabo and ether. As long as you use ether (not "eth") in your contract, the comparison will work fine.
solidity - Why does ++i cost less gas than i++? - Ethereum Stack …
2022年8月7日 · Newer versions of solidity should optimize this. In the past, the difference could be attributed to the codegen for i++ not getting inlined. Try --via-ir with the optimizer, they should have identical gas cost, except when the semantics are different.
solidity - What does the keyword "memory" do exactly?
2016年3月1日 · In Solidity, the keyword memory is used to declare variables that are stored in the EVM's memory, which is a temporary, short-lived storage area that is used during contract execution. Memory variables are only valid for the duration of a …