Solidity is high-level language oriented for smart contracts. It is a Turing-complete language, influenced by C++, Python, and JavaScript.
Solidity is a statically typed language that supports inheritance, libraries, and complex user-defined types. Solidity is a bit different from the other languages; for example, Solidity does not have null values. Variables are initialized with their default values. Solidity also does not have any exception-handling mechanism to propagate exceptions.
Solidity support different data types including uint, int, address, and many more. As developers, we must know that Solidity does not have boundary checks for the uint and int data types. This makes these data types vulnerable to overflow or underflow.
At the time of writing this book, a major release of Solidity, version 0.5.0, has come...
