Kotlin Questions

CoroutineScope

viewModelScope

GlobalScope

lifecycleScope

any() checks if at least one element matches a condition, while all() checks if all elements match.

any() checks if all elements match a condition, while all() checks if at least one element matches.

any() and all() are interchangeable and produce the same result.

any() returns the first matching element, while all() returns a list of all matching elements.

By using the safe call operator ?..

By directly accessing the property using the dot (.) operator.

Nullable objects cannot have their properties accessed in Kotlin.

By using the non-null assertion operator !!.

To execute code regardless of whether an exception is thrown.

To define a new custom exception class.

To handle exceptions thrown in the try block.

To specify the type of exception that the catch block can handle.

Improved code readability.

The ability to omit the else branch in certain scenarios.

Enhanced performance for pattern matching.

Sealed classes do not offer any specific benefits with when expressions.

extends

inherit

derivable

open

Using the safe call operator ?.

Using the let function to execute code only if the variable is not null.

Performing a null check using an if statement.

Using the Elvis operator ?: to provide a default value if the variable is null.

Int.() -> String

String(Int)

(Int) -> Unit

(Int) -> String

It replaces the function call with its actual code at compile time.

It creates a separate thread for the function execution.

It disables null safety checks within the function.

It converts the function into a lambda expression automatically.

extends

uses

inherits

implements