On 27 Jan 2017, at 11:27, TUNG CK via swift-users <[email protected]> wrote:
>
> Python, we have this
> for pixel in pixels:
> r, g, b, brightness = pixel
> .....
>
> I wonder how to do it in swift? is there a more swifty way to do something
> like this below?
> for pixel in pixels {
> var r = pixel[0]
> var g = pixel[1]
> var b = pixel[2]
> var brightness = pixel[3]
> .....
> }
If Pixel is a tuple instead of an array, you can do:
var (r,g,b,brightness) = pixel
Alex
1> let Pixel = (1,2,3,4)
Pixel: (Int, Int, Int, Int) = {
0 = 1
1 = 2
2 = 3
3 = 4
}
2> var (r,g,b,brightness) = Pixel
r: Int = 1
g: Int = 2
b: Int = 3
brightness: Int = 4
3>
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