EDIT: Thanks to GOTO 0
, I now know exactly what I my question is called.
I need a JavaScript function to convert from UTF-8 fullwidth form to halfwidth form.
Try this
function toASCII(chars) {
var ascii = '';
for(var i=0, l=chars.length; i<l; i++) {
var c = chars[i].charCodeAt(0);
// make sure we only convert half-full width char
if (c >= 0xFF00 && c <= 0xFFEF) {
c = 0xFF & (c + 0x20);
}
ascii += String.fromCharCode(c);
}
return ascii;
}
// example
toASCII("ABC"); // returns 'ABC' 0x41