Hi, simple question, how do I deal with theses typ...

# javascript

[Ayfri]

Hi, simple question, how do I deal with theses types of issues ?

it's an abstract method also, but Intellij doesn't show it up

[andylamax]

question is a bit unclear. Care to rephrase it?

[Tim Oltjenbruns]

possible the external method doesn’t have optional parameters, and its complaining about overriding them to be optional?

[Ayfri]

I'm trying to override an abstract external method that has one parameter with default value and I'm getting the error

Overriding `external` function with optional parameters

[ephemient]

you cannot change defaults when overriding

[turansky]

In most cases nullability rules are the same for parameters and properties.
Optional == nullable

// TS
draw(
    x?: number, 
    y?: number,
)

// Kotlin
fun draw(
    x: Double? = definedExternally, 
    y: Double? = definedExternally,
)

It’s even more transparent when you override method with optional parameters (your case)

@file:Suppress("OVERRIDING_EXTERNAL_FUN_WITH_OPTIONAL_PARAMS")

... 

override fun draw(
    x: Double?, 
    y: Double?,
) {
    // job
}

cc @Sergei Grishchenko

[hfhbd]

I'm always surprised how many "errors" can be suppressed in JavaScript 😄

[Ayfri]

So I have to suppress the error, I would have never thought of this