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How do I create a new GitHub repo from a branch in an existing repo?
I have master and new-project branches. And now I'd like to create a brand new repo with its master based on the new-project branch.
...
Can dplyr package be used for conditional mutating?
...
dplyr now has a function case_when that offers a vectorised if. The syntax is a little strange compared to mosaic:::derivedFactor as you cannot access variables in the standard dplyr way, and need to declare the mode of NA, but it ...
JavaFX and OpenJDK
...-get install openjfx
(currently this only works for Java 8 as far as I know).
Differences between Open JDK and Oracle JDK with respect to JavaFX
The following information was provided for Java 8. As of Java 9, VP6 encoding is deprecated for JavaFX and the Oracle WebStart/Browser embedded appli...
What is the difference between `sorted(list)` vs `list.sort()`?
...ontent is still the same.
nums
[-3, 1, 4, 5, 7, 8, 9, 14]
nums.sort()
Now the original nums list is changed and looking at nums we see our original list has changed and is now sorted.
nums
[-3, 1, 2, 4, 5, 7, 8, 14]
...
“git rm --cached x” vs “git reset head -- x”?
... commit it, you add it to the tree as well.
It will probably help you to know the three more common flags in git reset:
git reset [--<mode>] [<commit>]
This form resets the current branch head to <commit> and possibly
updates the index (resetting it to the tree of <...
Change the Right Margin of a View Programmatically?
...eft, top, right, bottom
tv.setLayoutParams(params);
I can't test it right now, so my casting may be off by a bit, but the LayoutParams are what need to be modified to change the margin.
NOTE
Don't forget that if your TextView is inside, for example, a
RelativeLayout, one should use RelativeLayout....
Why does C++ need a separate header file?
...against don't even need to have been written yet, never mind the compiler knowing what .cpp file they'll be in. Everything the calling code needs to know at compile time is expressed in the function declaration. At link time you will provide a list of .o files, or static or dynamic libraries, and th...
Is it possible to make a type only movable and not copyable?
... the marker types is preferred if the destructor is doing nothing.
Types now move by default, that is, when you define a new type it doesn't implement Copy unless you explicitly implement it for your type:
struct Triplet {
one: i32,
two: i32,
three: i32
}
impl Copy for Triplet {} // a...
Practical use of `stackalloc` keyword
...only be stored into a pointer local variable. As of C# 7.2, stackalloc can now be used as part of an expression and can target a span, and that can be done without using the unsafe keyword. Thus, instead of writing
Span<byte> bytes;
unsafe
{
byte* tmp = stackalloc byte[length];
bytes = ne...
Declaring and initializing variables within Java switches
...on is.)
If you comment out the value = 2; assignment, the compiler still knows which variable you're referring to, but you won't have gone through any execution path which assigns it a value, which is why you get an error as you would when you try to read any other not-definitely-assigned local var...