Question

How to remove an element from an array in Kotlin

Answer 1

fun main() {
    val array = arrayOf(1, 2, 3, 4, 5, 6)
	val elementValueToRemove = 3
	
    val newArray = array.filter { it != elementValueToRemove }.toTypedArray()
	
    println(newArray.joinToString()) 
}
 
 
  
/*
run:

1, 2, 4, 5, 6

*/

 

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Answer 2

fun main() {
    val array = arrayOf(1, 2, 3, 4, 5, 6)
	val elementValueToRemove = 3
    
	val index = array.indexOf(elementValueToRemove)
	val newArray = if (index >= 0) {
    	array.copyOfRange(0, index) + array.copyOfRange(index + 1, array.size)
	} else {
    	array
	}
	
    println(newArray.joinToString()) 
}
 
 
  
/*
run:

1, 2, 4, 5, 6

*/

 

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