Is there a way to shorten this? A 2D range or some...

# announcements

[Luke]

Is there a way to shorten this? A 2D range or something…

(0 until width).forEach { x ->
        (0 until height).forEach { y ->
                println("($x, $y)")
        }
}

I would like to write code similar to:

(width rangeBy height).forEach { (x, y) -> println("($x, $y)") }

Note that width and height don’t come from an iterable object in my case.

[streetsofboston]

You just written the code yourself already, basically 🙂 :

fun Pair<Int, Int>.forEach(block: (Int,Int)-> Unit) {
    (0 until width).forEach { x ->
        (0 until height).forEach { y ->
            block(x, y)
        }
    }
}

...
(width to height).forEach { x, y-> println("$x, $y") }

[Luke]

Yes well I was asking in the case it’s already in the standard library