Logical OR operator is not working in IF condition, solidity 0.5.0

Question

I wanted to ask if is it available to use OR operator in IF conditions, because its giving me awkward results, like this:

contract test {
  if(player1Points > Player2Points || player1Points >= 50){
      result = 1;
  }
}

any help ??

Answer 1

Yes, you can use it.

From the docs:

The operators || and && apply the common short-circuiting rules. This means that in the expression f(x) || g(y), if f(x) evaluates to true, g(y) will not be evaluated even if it may have side-effects.

Try with this code:

pragma solidity ^0.5.0;

contract Test {

    function comparePoints (uint player1Points, uint player2Points) public pure returns (uint) {
        uint result;

        if(player1Points > player2Points || player1Points >= 50){
            result = 1;
        }
        return result;
    }
}

Maybe the following sections will be useful to start writing smart contracts.

• Structure of a Contract
• Contracts