how can I get the ASCII value of a character?

[trubshac]

Hi

I have a string variable, e.g.
var s = "a string";

I wish to step through each character of the string, and carry out a computation on the ASCII value of the character. If I do the following:

for(var i=0; i<s.length; i++)
{
var n = s.charAt(i);
}
Then n correctly receives each character of the string, but unfortunately, I am unable to carry out any computations on n becase, I presume, it too is a string object.

If I was writing in 'C', I would put:

int n = (int)s[i];

How can I convert a character from a string into its numeric ASCII value?

Thanks

[ckryza]

Sure. just use the charCodeAt() method.

var x = "A";

var asciiVal = x.charCodeAt(0);

Chris

[trubshac]

Many thanks - that's just what I was after. Is this info in a help file anywhere?

[ACM]

trubshac
You can find it in the Core JavaScript Guide which is in the EFS KnowledgeBase (see this article on String functions and methods)
Alex