is there a shortcut for `val a = try { myfun()} } ...

# announcements

[robstoll]

is there a shortcut for val a = try { myfun()} } catch(T: Throwable){ null }

[Bob Glamm]

Using Arrow (arrow-kt.io): val a = Try.invoke(::myfun).orNull()

[arekolek]

i haven’t used it, and I think it uses coroutines(?), but maybe https://kotlinlang.org/api/latest/jvm/stdlib/kotlin/run-catching.html would be helpful

[robstoll]

I was hoping for something like that but from the std-lib 🙂

[robstoll]

@arekolek I am using kotlin 1.2.x but good to know

[Davide Giuseppe Farella]

I use this ( or other variants, depending on the use case )

fun <T: Any?> handle( default: T? = null, block: () -> T ) : T? {
    return  try {
        block()
    } catch ( t: Throwable ) {
        default
    }
}

[Marc Knaup]

val a = runCatching { myfun() }.getOrNull()

[Davide Giuseppe Farella]

Looks like overkill a runCatching for me

[Marc Knaup]

Why overkill? It does exactly what was asked for and in the non-error case it has no overhead due to use of inline class.

[dave08]

He's using Kotlin 1.2, where there isn't any runCatching yet.

But I've upgraded a few projects to 1.3, and it went smoothly, and there are pretty handy changes that made it worth it... runCatching is especially interesting when accumulating `Result`s and acing on them later.

[Davide Giuseppe Farella]

@Marc Knaup there is no overhead as you said, but I would use it for a more complex purpose. I'm not said it's wrong to use it, it's just my personal feeling