Shownotes * Kotlin Returns and Jumps Documentation

Code

``` data class Customer(val isPlatinum: Boolean)

fun main() {

val customer = Customer(false)

println("Number of points customer has: ${calculatePoints(customer)}")

// Break out of the loop once we're over 25
for (i in 1..100) {
    if (i > 25) {
        break
    } else {
        println(i)
    }
}


// Skip all even numbers
for (i in 1..100) {
    if (i % 2 == 0) {
        continue
    } else {
        println(i)
    }
}


// Break out of the outer loop (which breaks out of the inner too) using a label
donn@ for (i in 1..100) {
    for (j in 100..200) {
        if (j > 150) break@donn // This will break out of the inner loop and outer loop
        else println("i: $i, j: $j")
    }
}

// Continue processing the next outer loop value when a condition is met.
donn@ for (i in 1..100) {
    for (j in 100..200) {
        if (j > 150) continue@donn // This will break out of the inner loop and outer loop
        else println("i: $i, j: $j")
    }
}

// returns with label
example1()
example2()

println("I'm done processing!")

}

fun calculatePoints(customer: Customer): Int { if (customer.isPlatinum) { return 100000 } else { return 10 } }

fun example1() { listOf(1, 2, 3, 4, 5, 6, 7, 8, 9).forEach { if (it > 7) { return } else { println(it) } } println("This wont print :( because return exited the bar() function") }

fun example2() { listOf(1, 2, 3, 4, 5, 6, 7, 8, 9).forEach bin@ { if (it > 7) { return@bin } else { println(it) } } println("This will print! :) return exited the forEach!") }

```

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