Browser Converts No ASCII for JS Text Node or any Text Attribute

[vunet.us]

Browsers convert my ASCII fine when webpage is set to
charset=iso-8859-1.
However, my AJAX app has too many cases with

var myASCII = "ü";
document.createTextNode(myASCII);

In this case or similar, such as option.text = myASCII; for select
object, browsers fail to convert ASCII to HTML.

What can be done? Do I need to rewrite all cases to use innerHTML
instead of createTextNode, etc.?
Thanks

 

[Martin Honnen]

Browsers convert my ASCII fine when webpage is set to
charset=iso-8859-1.
However, my AJAX app has too many cases with

var myASCII = "ü";
document.createTextNode(myASCII);

In this case or similar, such as option.text = myASCII; for select
object, browsers fail to convert ASCII to HTML.

The createTextNode method takes a DOM string, in JavaScript that is
simply a JavaScript string so try
document.createTextNode("ü")
or
document.createTextNode(String.fromCharCode(0xFC))
or
document.createTextNode("\u00FC")

The ü syntax is a numeric character reference meant for an HTML
or XML parser. createTextNode does not do any HTML or XML parsing.

 

[vunet.us]

The createTextNode method takes a DOM string, in JavaScript that is
simply a JavaScript string so try
document.createTextNode("ü")
or
document.createTextNode(String.fromCharCode(0xFC))
or
document.createTextNode("\u00FC")

The ü syntax is a numeric character reference meant for an HTML
or XML parser. createTextNode does not do any HTML or XML parsing.

Yes, Unicode works well: document.createTextNode("\u00FC"). However,
my strings look like:

var myASCII = "Do not remove text ü and do not remove text,
blah blah";
document.createTextNode(myASCII);

and there are plenty of different strings containing all possible
ASCII values. What would you recommend in that case. Is it possible to
convert all ASCII to Unicode, then?

 

[Martin Honnen]

var myASCII = "Do not remove text ü and do not remove text,
blah blah";
document.createTextNode(myASCII);

and there are plenty of different strings containing all possible
ASCII values. What would you recommend in that case. Is it possible to
convert all ASCII to Unicode, then?

ASCII is a subset of Unicode. As said, ü is a numeric character
reference to be parsed by an HTML or XML parser. That has nothing to do
with ASCII. If you have such character references then you need to use
an HTML parser for instance by setting innerHTML of an HTML element node.