Don't use .first() without handling exceptions

When you work with kotlin is much common you need get first caracter of string. So you need function stringVariable.first().

The problem occorer when you not handling execption of this methods, like NoSuchElementException.

So use the try cat and not use in if like:

val name = "Kotlin"
if (name.first() == "K") {
...

if you change the name value to another has exception: NoSuchElementException or NoSuchElementException when send crash you app.

Comments

[Adam Van Hine]

First should only throw if the string is empty. So you could also check to make sure it wasn't empty to avoid the exception. kotlinlang.org/api/latest/jvm/stdl...