Hi All, I'm going through <Koan's Lazy Property ex...

# getting-started

[elye]

Hi All, I'm going through Koan's Lazy Property example.

The question is

Add a custom getter to make the val lazy really lazy. It should be initialized by invoking initializer() during the first access.
You can add any additional properties as you need.
Do not use delegated properties!

The answer code is

class LazyProperty(val initializer: () -> Int) {
    var value: Int? = null
    val lazy: Int
        get() {
            if (value == null) {
                value = initializer()
            }
            return value!!
        }
}

I tried the below and it also pass

class LazyProperty(val initializer: () -> Int) {
    val lazy by lazy {
        initializer()
    }
}

I'm not sure the intent of this tutorial introducing lazy , but not using by lazy. Is it to show us the get() instead?

Thanks 🙏

[elye]

Oh, I got it, because the next example will show us how to do so
https://play.kotlinlang.org/koans/Properties/Delegates%20examples/Task.kt

[Colin Marsch]

This seems to be intending to show how lazy works under the hood by having you implement it yourself