How to convert decimal to hexadecimal in JavaScript

Question

How do you convert decimal values to their hexadecimal equivalent in JavaScript?

Answer 1

To sum it all up;

function toHex(i, pad) {

  if (typeof(pad) === 'undefined' || pad === null) {
    pad = 2;
  } 

  var strToParse = i.toString(16);

  while (strToParse.length < pad) {
    strToParse = "0" + strToParse;
  }

  var finalVal =  parseInt(strToParse, 16);

  if ( finalVal < 0 ) {
    finalVal = 0xFFFFFFFF + finalVal + 1;
  }

  return finalVal;
}

However, if you don't need to convert it back to an integer at the end (i.e. for colors), then just making sure the values aren't negative should suffice.