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Solidity is a contract-oriented programming language used to write smart contracts on the Ethereum blockchain. Its main properties include static typing, inheritance, and events. Solidity is popular due to its familiarity with JavaScript and C++, but its immaturity may cause security vulnerabilities. Other smart contract languages include Vyper and Rust, which prioritize safety and security but have a steeper learning curve. Pros of Solidity include its popularity, wide community support, and established tooling. Cons include its immaturity, lack of formal verification, and high potential for errors.
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