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Kotlin
75 challenges · Practitioner to Specialty
9 Easy
16 Medium
50 Hard
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All Kotlin challenges
Kotlin: What is Kotlin
Easy
Free
+10 XP
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Kotlin: interop
Medium
Free
+15 XP
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Kotlin: val vs var
Easy
Free
+10 XP
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Kotlin: var
Easy
Free
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Kotlin: type inference
Medium
Free
+15 XP
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Kotlin: no semicolons
Easy
Free
+10 XP
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Kotlin: null safety
Hard
Free
+20 XP
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Kotlin: non-null default
Hard
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Kotlin: safe call
Hard
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Kotlin: elvis
Hard
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Kotlin: not-null assert
Hard
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Kotlin: Function keyword
Easy
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Kotlin: fun
Easy
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Kotlin: default args
Medium
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+15 XP
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Kotlin: named args
Medium
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Kotlin: single expr fun
Hard
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Kotlin: extension fun
Hard
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Kotlin: lambda
Medium
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Kotlin: higher order
Hard
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Kotlin: it
Hard
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Kotlin: data class
Hard
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Kotlin: class
Easy
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Kotlin: constructor
Medium
Free
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Kotlin: object
Hard
Free
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Kotlin: companion
Hard
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Kotlin: sealed class
Hard
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Kotlin: when
Medium
Free
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Kotlin: if expression
Hard
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+20 XP
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Kotlin: for range
Medium
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Kotlin: smart cast
Hard
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Kotlin: open
Hard
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Kotlin: abstract
Hard
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Kotlin: interface
Medium
Free
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Kotlin: List
Easy
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Kotlin: mutableList
Medium
Free
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Kotlin: map
Medium
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Kotlin: collection ops
Hard
Free
+20 XP
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Kotlin: to pair
Hard
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Kotlin: destructuring
Hard
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Kotlin: string template
Easy
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Kotlin: when exhaustive
Hard
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Kotlin: nullable collection
Hard
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Kotlin: let
Hard
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Kotlin: apply
Hard
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Kotlin: run also
Hard
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Kotlin: coroutine
Hard
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Kotlin: suspend
Hard
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Kotlin: launch
Hard
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Kotlin: async coroutine
Hard
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Kotlin: coroutine scope
Hard
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Kotlin: flow
Hard
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Kotlin: immutability pref
Medium
Free
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Kotlin: typealias
Hard
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Kotlin: nullable platform
Hard
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Kotlin: const val
Hard
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Kotlin: lateinit
Hard
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Kotlin: by lazy
Hard
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Kotlin: delegation
Hard
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Kotlin: inline fun
Hard
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Kotlin: operator overload
Hard
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@malathi-shetty
1 solved