Hello, I encounter a problem. In crypto-js-wasm, a...

# javascript

[zyfuni]

Hello, I encounter a problem. In crypto-js-wasm, a function look like this
https://github.com/originjs/crypto-js-wasm/blob/596159e168a9cce4858f7000701711f328e0e76c/src/core/hasher.js#L41

static _createHelper(SubHasher) {
    let result = (message, cfg) => new SubHasher(cfg).finalize(message);
    result.loadWasm = async () => {
      if (!SubHasher.wasm) {
        await SubHasher.loadWasm();
      }
    };
    result.outputSize = SubHasher.outputSize;

    return result;
  }

And I found a official doc, but it not tell me how to invoke MyClass as Function
https://kotlinlang.org/docs/js-interop.html#declare-static-members-of-a-class
In JavaScript you can define members either on a prototype or a class itself:

function MyClass() { ... }
MyClass.sharedMember = function() { /* implementation */ };
MyClass.prototype.ownMember = function() { /* implementation */ };

There is no such syntax in Kotlin. However, in Kotlin we have companion objects. Kotlin treats companion objects of external classes in a special way: instead of expecting an object, it assumes members of companion objects to be members of the class itself. MyClass from the example above can be described as follows:

external class MyClass {
    companion object {
        fun sharedMember()
    }

    fun ownMember()
}

[Artem Kobzar]

Yes, it should work: https://pl.kotl.in/-nS0wFMtD

[Artem Kobzar]

When you say "run class as a function" what do you mean?

[Artem Kobzar]

Could you show the expected usage in JS?

[zyfuni]

@Artem Kobzar I expected this

//js("globalThis.Foo = function () {console.log('hello')}")
//print hello
MyClass()
//also in crypto-js-wasm
await CryptoJSW.MD5.loadWasm()
CryptoJSW.MD5("hello")
//CryptoJSW just is [result] in first block.

I make some edit in the playground. Maybe you could check changes at the time?

[Artem Kobzar]

https://pl.kotl.in/w8lYQxvtU

[zyfuni]

@Artem Kobzar 👍🏻thank you