Перевод десятичного числа в двоичное JS [дубликат]

function toBase(value, base) { 
  if (base != Math.round(base)) 
    throw "Base is not valid: " + base; 
  // TODO: define digits above 9 
  var result = ""; 
  while (value) { 
    result = value % base + result; 
    value = Math.floor(value / base); 
  } 
  return result; 
} 
 
function toBinary(value) { 
  return toBase(value, 2); 
} 
 
console.log(toBinary(10)); 
console.log(toBinary(33)); 
console.log(toBinary(100)); 
console.log(toBinary(128)); 
 
console.log(toBase(128, 10)); 
console.log(toBase(128, 10.5));