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Are HLists nothing more than a convoluted way of writing tuples?
...ially nothing more than a stack of Tuple2 with slightly different sugar on top.
def hcons[A,B](head : A, tail : B) = (a,b)
def hnil = Unit
hcons("foo", hcons(3, hnil)) : (String, (Int, Unit))
So your question is essentially about the differences between using nested tuples vs flat tuples, but th...
地图组件（高德地图） · App Inventor 2 中文网
...to
move their finger on the screen. It will be followed by the Drag and
StopDrag events.
StopDrag()
The StopDrag event runs when the user releases the 标记 at the end of a drag.
方法
BearingToFeature(mapFeature,centroids)
Returns the bearing from the 标记 ...
How do I put a bunch of uncommitted changes aside while working on something else
...h that is "underneath" another patch in the stack requires that the one on top of it be pushed also.
Warning, as with all these options, if the files have more changes since the temporary changes that you've shelved / queued / branched, there will be merge resolution required when un-shelving / pus...
How to center a WPF app on screen?
...tup on the primary screen. I know I have to set myWindow.Left and myWindow.Top, but where do I get the values?
8 Answers
...
“The run destination iOS Device is not valid for running the scheme”
...
Product -> Scheme -> Edit Scheme or click on the top icon which displays the app icon close to the play icon...
– Andrea Leganza
Aug 29 '18 at 12:48
...
Shortcut to switch between design and text in Android Studio
...he platform).
You can change it.
Now you can check sequence of button in top right bar to switch between design, text and preview.
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...
FAQ Section: SMS - Frequently Asked Questions - MIT App Inventor Community
...ackface-visibility: hidden;
position: absolute;
left: 0;
top: 0;
width: 100%;
z-index: 1001;
--animation-state: paused;
}
#d-splash .preloader-image {
max-width: 100%;
height: 100vh;
}
#d-splash .preloader-text-wrapper {
positio...
Why is `[` better than `subset`?
...ie questions for clarification? When we write subset(mtcars, cyl == 4) (at top level), where does R look for cyl? If it looks into the mtcars object that is passed to subset(), then shouldn't it be able to find cyl even if scramble is within another function, since mtcars is still being passed to it...
I can not find my.cnf on my windows computer [duplicate]
... C:\Documents and Settings\All Users\MySQL\MySQL Server 5.5\my.ini
At the tops of these files are comments defining where my.cnf can be found.
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Android Camera Preview Stretched
...od -> based on API Demos to get my Preview Size:
private Camera.Size getOptimalPreviewSize(List<Camera.Size> sizes, int w, int h) {
final double ASPECT_TOLERANCE = 0.1;
double targetRatio=(double)h / w;
if (sizes == null) return null;
Camera.Size optimalSi...