I have the following string for example:
"Hi I am testing a weird character Ů, its a U with a circle"
Now my string uses the html code Ů to display the U-circle. I need this however to be in unicode format, ie. \u016E. Is there any good systematic way to do this with plain vanilla javascript?
If you want to convert numeric HTML character references to Unicode escape sequences, try the following (doesn't work with with code points above 0xFFFF):
function convertCharRefs(string) {
return string
.replace(/&#(\d+);/g, function(match, num) {
var hex = parseInt(num).toString(16);
while (hex.length < 4) hex = '0' + hex;
return "\\u" + hex;
})
.replace(/&#x([A-Za-z0-9]+);/g, function(match, hex) {
while (hex.length < 4) hex = '0' + hex;
return "\\u" + hex;
});
}
If you simply want to decode the character references:
function decodeCharRefs(string) {
return string
.replace(/&#(\d+);/g, function(match, num) {
return String.fromCodePoint(num);
})
.replace(/&#x([A-Za-z0-9]+);/g, function(match, num) {
return String.fromCodePoint(parseInt(num, 16));
});
}
Both functions use String.replace with a function as replacement.
U+016Eor its Javascript equivalent,\u016E? Or just the encoding the HTML file uses (i.e. the character itself)? By the way, Ů is not hexadecimal.