Collection: Find if all elements are satisfying a particular condition

Code

val countriesList = mutableListOf(
    Country(name = "USA", isDemocracy = true),
    Country(name = "Australia", isDemocracy = true),
    Country(name = "Russia", isDemocracy = false),
    Country(name = "England", isDemocracy = true),
    Country(name = "North Korea", isDemocracy = false)
)

fun main(args: Array<String>) {
    val output = countriesList.all {
        it.isDemocracy
    }
    
    println("Result-> $output")
}

Output

Result-> false