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Collection: Sorting a collection of objects based on a parameter in the object
        Devrath edited this page Feb 29, 2024 
        ·
        1 revision
      
    Observation This is handy instead of using the comparator where kotlin does this out of the box
Code
data class Country(val id : Int, val name: String, val isDemocracy: Boolean)
val countriesList = mutableListOf(
    Country(id = 1, name = "USA", isDemocracy = true),
    Country(id = 2, name = "Australia", isDemocracy = true),
    Country(id = 3, name = "Russia", isDemocracy = false),
    Country(id = 4, name = "England", isDemocracy = true),
    Country(id = 5, name = "North Korea", isDemocracy = false),
)
fun main(args: Array<String>) {
    countriesList.sortBy {
       it.name
    }
    countriesList.forEach {
        println(it.name)
    }
}Output
Australia
England
North Korea
Russia
USA