Why string to hex give me same result

Question

I want to convert string 00 to hex value 3030

'00'.toString('hex')

give me 00.

What is the right method?

Do you want to convert a string like "XX" to a hex like "3X3X" or to a hex like "XX" + 3030? — M. Haverbier, Jul 06 '17 at 15:20
@Alvin Well `'00'` won't compile in Java. So it's not really the same thing. — khelwood, Jul 06 '17 at 15:20
Have a [look here](http://www.w3resource.com/javascript-exercises/javascript-string-exercise-27.php). It may be that there isn't already inbuilt function, but there is a function on the page that does the job. — AntonH, Jul 06 '17 at 15:25
If you convert '00' to an integer it should be 0 (ignoring leading zeros). If you convert 0 (int) to hex you should get 0 (hex). — M. Haverbier, Jul 06 '17 at 15:26
http://string-functions.com/string-hex.aspx, 00 give me 3030 — Alvin, Jul 06 '17 at 15:30
This is converting the ascii representation number of each char to a hex-value - not the string itself. — M. Haverbier, Jul 06 '17 at 15:33

score 0 · Accepted Answer · answered Jul 06 '17 at 15:42

Shamelessly stolen from this web site:

function ascii_to_hexa(str)
{
    var arr1 = [];
    for (var n = 0, l = str.length; n < l; n ++) 
    {
        var hex = Number(str.charCodeAt(n)).toString(16);
        arr1.push(hex);
    }
    return arr1.join('');
}

Why string to hex give me same result

1 Answers1