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Conditionals&Loops.sol

pragma solidity ^0.6.0;

contract MyContract {
    
    uint[] public numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];
    
    address public owner;
    
    constructor() public {
        owner = msg.sender;
    }
    
    function countEvenNumbers() public view returns (uint) {
        uint count = 0;
        
        for (uint i = 0; i < numbers.length; i++) {
            if (isEvenNumber(numbers[i])) 
                count ++;
        }
        
        return count;
    }
    
    function isEvenNumber(uint _number) public pure returns(bool) {
        if (_number % 2 == 0) {
            return true;
        } else {
            return false;
        }
        
        // Ili samo
        // return (_number % 2 == 0);
    }
    
    function isOwner() public view returns(bool) {
        return (msg.sender == owner);
        
        // if (msg.sender == owner) {
        //     return true;
        // } else {
        //     return false;
        // }
    }
}