String.prototype.normalize() with Filters

Description Latin small letter s with dot below and dot above in long and normal version
Form Representation Code
Original form ẛ̣ \u1E9B\u0323
Canonically-composed form (NFC) ẛ̣ \u1E9B\u0323
Canonically-decomposed form (NFD) ẛ̣ \u017F\u0323\u0307
Compatibly-composed (NFKC) \u1E69
Compatibly-decomposed (NFKD) ṩ \u0073\u0323\u0307

Application in filters

Actual code:
Resulting code:
Resulting char: