Run results for: Compare GCD

Run details:

User agent: Mozilla/5.0 (Windows NT 6.3; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/53.0.2785.143 Safari/537.36

Browser: Chrome 53

Operating system: Windows 8.1

Device Platform: Other

Date tested: 7 years ago

Test name	Executions per second
Bottom Up	83841.1 Ops/sec
Top Down	10704.0 Ops/sec

Script Preparation code:

function greatestCommonDivisor(a, b){
  var divisor = 2, 
      greatestDivisor = 1;

  //if u pass a -ve number this will not work. fix it dude!!
  if (a < 2 || b < 2)
     return 1;
  
  while(a >= divisor && b >= divisor){
   if(a %divisor == 0 && b% divisor ==0){
      greatestDivisor = divisor;      
    }
   divisor++;
  }
  return greatestDivisor;
}

function gcd(a,b){
    var divisor = a >= b ? a : b;
    
    if(a < 2 || b < 2){
        return 1;
    }
    
    while(divisor > 0){
        if(a % divisor === 0 && b % divisor === 0){
            return divisor;
        }
        divisor--;
    }
}

Tests:

Bottom Up
greatestCommonDivisor(1012, 10580);
Top Down
gcd(1012, 10580);

Run results for: Compare GCD

Compare GCD

Bottom Up

Top Down