repeat: lgn

by Paco86

JavaScript

function repeat(str, num){
	var result = '';
  while(true){
    
    if(num & 1){
    	result += str;
    }

    num = num >>> 1;
    
    if(num <= 0) break;
    
    str += str;
  }
  
  console.log(result);
}


repeat('a', 1)