For testing purposes, I’m adding the ability to re...

# multiplatform

[Justin]

For testing purposes, I’m adding the ability to read *.json files into kotlin strings. My project targets JVM, JS, and iOS.

My approach was to create a common:

expect fun readFileToString(file: String) : String?

And then implement actuals in each target.

I have iOS and JVM working, but am not sure of the best way to implement the actual in JS.

Here’s my JVM `actual`:

import java.io.File

actual fun readFileToString(file: String) : String? {
    return File(file).readText(Charsets.UTF_8)
}

Anyone done something like this?

I assume I’ll use fs.fileReadSync: but I’m not sure what I need to import to access that method?

[Nicholas Bilyk]

You can convert a Promise into a suspending function:

suspend fun <T> Promise<T>.await(): T = suspendCoroutine { cont -> 
    then({ cont.resume(it) }, { cont.resumeWithException(it) })                                                      
}

Then if there exists a thing in node that isn't in the stdlib for kotlin you can write a definition for it with external fun.