sepisoltani

contract Example{

function test() public {

//6e91ec6b618bb462a4a6ee5aa2cb0e9cf30f7a052bb467b0ba58b8748c00d2e5
keccak256(abi.encodePacked("aaaab"));
//b1f078126895a1424524de5321b339ab00408010b7cf0e6ed451514981e58aa9
keccak256(abi.encodePacked("aaaac"));

}

sepisoltani

contract Example{

string name = "sepehr";

function _multiply(uint a, uint b) private pure returns (uint) {
  return a * b;
}

}

sepisoltani

contract Example{

string x = "hello";
function sayHello() public view returns (string memory) {
  return x;
}

}

sepisoltani

contract Example{

string x = "hello";
function sayHello() public returns (string memory) {
  return x;
}

}

sepisoltani

contract Example{

uint[] numbers;

function _addToArray(uint _number) private {
  numbers.push(_number);
}

}

sepisoltani

contract Example{

struct Person {
  uint age;
  string name;
}

Person[] public people;

function createNewPersonAndAddToArray() public {

sepisoltani

contract Example{

eatHotDogs("sepehr", 100);

}

sepisoltani

contract Example{

function eatHotDogs(string memory _name, uint _amount) public {

}

}

sepisoltani

contract Example{

Person[] people; // dynamic Array, we can keep adding to it

}

sepisoltani

contract Example{

// Array with a fixed length of 2 elements:
uint[2] fixedArray;
// another fixed Array, can contain 5 strings:
string[5] stringArray;
// a dynamic Array - has no fixed size, can keep growing:
uint[] dynamicArray;