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kotlinlang

How to use ArrayList outside of kotlin, in the js? I am unable to call `get`, external class should help?

You can create a wrapper that exposes access to ArrayList via methods marked as `JsName`

You can open kotlin.js and see which methods are actually there.

Or you can write a simple program that works with ArrayList and see which methods are actually called

```
var mutableListOf = Kotlin.kotlin.collections.mutableListOf_i5x0yv$;
  var println = Kotlin.kotlin.io.println_s8jyv4$;
  function main(args) {
    var list = mutableListOf([1, 2, 3]);
    list.add_11rb$(4);
    println(list.get_za3lpa$(0));
    println(list.size);
  }
```

Why
```
@JsName("kget")
fun &lt;V&gt; ArrayList&lt;V&gt;.kget(key: Int): V? = get(key)
```
not works?

is `get_za3lpa$` same in each browser? ))

Because extension function is not copied to prototype

It's de-facto static function with first parameter taking call receiver

Then I'll use get_za3lpa$. I am going to rewrite js to kotlin, so get_za3lpa$ will be replaced