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SOLIDITY - Coggle Diagram

- - - - uint[2] directions;
    - - uint[ ] people;
      - push merthod
        
        people.push(Person(16, "Vitalik"));
  - - - private
      - public
      - view
      - constant
      - modifier
      - pure
    - - by reference
        
        uint _amount
        
        the value of the reference gets changed
      - by value
        
        string memory _name
        
        creates a copy of the variable thus the original does not change
      - start function parameters by "_"
    - - view
        
        the funcion accesses the values just for reading
        
        function sayHello() public view returns (string memory) {
      - pure
        
        the function values are not accessed
        
        function _multiply(uint a, uint b) private pure returns (uint) {
        return a * b;
        }
    - - function sayHello() public returns (string memory) { }
      - array of strings not supported