Why should it not? You’re literally breaking the content.
Though in reality, indexing strings is a broken operation. That you’re using it at all is the core issue.
> Modern strings are complex objects that have evolved a bit past char[] or byte[].
And yet that’s exactly what you’re advocating, just with 21 bit chars.
Strings are just an array of unicode codepoints rather than "characters", so all I'm doing is asking for the first three of those codepoints.
> Though in reality, indexing strings is a broken operation. That you’re using it at all is the core issue.
Substring is a broken operation? What's the justification for that idea?
"Ice trays are just a pile of molecules rather than "cubes", so all I'm doing is separating those molecules", he states as he activates the igniter.
> Substring is a broken operation? What's the justification for that idea?
You take a thing and you mangle beyond recognition without regards for its purpose or meaning. That's like considering the jaws of life a normal part of opening a door to take a piss at work.
If the user gives you what, as far as they're considered, is a glyph. And you return a completely different glyph. You've mangled their data.