function addNumber(uint _number) public pure return (uint) {
uint value = 10;//local variable
value = value+number;
return value
}
//here public nmeans we can access outside of smart contract like from frontend
//pure means it don't access blockchain data
//instead of pure if function read from blockchain then it will be read.
//if we need to write data in blockchain we don't need to add any keyword like view and pure

pragma solidity ^0.5.0;
contract Test { function getResult() public view returns(uint){ uint a = 1; // local variable uint b = 2; uint result = a + b; return result; }
}

function function-name(parameter-list) scope returns() { //statements
}

 // Defining function to calculate sum of 2 numbers function add() public view returns(uint){ uint num1 = 10; uint num2 = 16; uint sum = num1 + num2; return sum; }