jwalgemoed

fun printUserDetails(user: User?) {
    if(user.isComplete()) {
        println("${user!!.name} ${user!!.email}")
    }
}

jwalgemoed

fun printUserDetails(user: User?) {
    if(user?.isValid()) {
        println("${user.name} ${user.email}")
    }
}

jwalgemoed

@ExperimentalContracts
fun main(args: Array<String>) {
    var assign: String
    val time = measureTimeMillis {
        assign = "Value Assigned"
    }
    println("$time ms. spent assigning: '$assign'")
}

@ExperimentalContracts

jwalgemoed

fun main(args: Array<String>) {
    var assign: String
    val time = measureTimeMillis {
        assign = "Value Assigned"
    }
    println("$time ms. spent assigning: '$assign!!'")
}

private inline fun measureTimeMillis(block: () -> Unit): Long {
    val start = System.currentTimeMillis()