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This topic is about Solidity - Inheritance. Inheritance is a way to extend functionality of a contract. Solidity supports both single as well as multiple inheritance. Following are the key…

This topic is about Solidity - Contracts. Contract in Solidity is similar to a Class in C++. A Contract have following properties. Constructor − A special function declared with constructor keyword…

This topic is about Solidity - Restricted Access. Restricted Access to a Contract is a common practice. By Default, a contract state is read-only unless it is specified as public.…

This topic is about Solidity - Withdrawal Pattern. Withdrawal pattern ensures that direct transfer call is not made which poses a security threat. Following contract is showing the insecure use…

This toppic is about Solidity - Cryptographic Functions. Solidity provides inbuilt cryptographic functions as well. Following are important methods − keccak256(bytes memory) returns (bytes32) − computes the Keccak-256 hash of the…

This topic is about Solidity - Pure Functions. Pure functions ensure that they not read or modify the state. A function can be declared as pure. The following statements if present…

Solidity provides inbuilt mathematical functions as well. Following are heavily used methods − addmod(uint x, uint y, uint k) returns (uint) − computes (x + y) % k where the addition…