JavaScript code to generate a UTF8 string from UTF codes

I am in possession of the byte representation of UTF8, such as:

195, 156 for "Ü" (capital U Umlaut)

I am struggling to generate a JavaScript-compatible string from these numbers - all my attempts have been unsuccessful. Every method I have tried has misinterpreted "195" as a UTF leading byte and displayed it as "Ã".

Can anyone provide guidance on how to create a displayable string from my sequence of UTF8 bytes?

Answer №1

In this scenario, you are handling the decimal representations of single byte components of characters. In the given instance, the numbers are 195 and 156. The first step involves converting these numbers to base 16, resulting in C3 and 9C. After that, you can utilize JavaScript's decodeURIComponent function.

console.log(decodeURIComponent(`%${(195).toString(16)}%${(156).toString(16)}`));

If you are dealing with numerous characters, it would be advisable to use a library that offers string encoding/decoding capabilities. For instance, Node.js's Buffer objects handle this process internally.

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