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kotlinlang

whats the easiest way to make the first character of a string uppercase, but leaving the rest as-is ? need an extension function similar to `.uppercase()`

i came up with `fun String.foo() = this[0].uppercase() + drop(1)` , is that already the best it can be ?

You can use the <https://kotlinlang.org/api/latest/jvm/stdlib/kotlin.text/replace-first-char.html|replaceFirstChar> extension combined with the .uppercase() extension.

`"kotlin".replaceFirstChar { it.uppercase() }`

The recommended replacement for the deprecated `.capitalize()` extension is `.replaceFirstChar { it.titlecase() }`, not `.uppercase()`, because it does make a difference: <https://pl.kotl.in/NbGTR5LaB|https://pl.kotl.in/NbGTR5LaB>
```'ß'.uppercase() == "SS"
'ß'.titlecase() == "Ss"```