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kotlinlang

What's the difference between using a `Companion Object` and using an `Object Declaration`?

companion objects are the closest thing Kotlin has to the notion of static members - they’re declared inside of a class and a single one is instantiated to be referenced to by every instance of said class

Do Object Declarations not allow me do the same? -&gt; "Call a method without instantiation"

an object declaration is just a way to create a new anonymous class instance, which are often used to implement interfaces on the fly

so this
```
class Foo {
  companion object {
    fun bar() {}
  }
}
```

is rather different from this

```
class Foo {
  val fieldObject = object {
    fun bar() {}
  }
}
```

the former allows you to call `Foo.bar()`, the latter does not

If you dont need the class, put `fun` out of a class… it will belong to package without a class and is static. It’s more “kotlin-way”

I get it now... This helped:
<https://youtu.be/buhk5TRX_rw>
Thanks

I believe <@UGYM1LGCX> is referring to what’s known as “top-level” functions