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Reverse Range in Swift
...;(Range<Pos>)> {
return (start..<end).reverse()
}
So now I'm allowed to say:
for i in 5>>>1 {print(i)} // 4, 3, 2, 1
This covers just the most common case that occurs in my code, but it is far and away the most common case, so it's all I need at present.
I had a ki...
What are enums and why are they useful?
...s (contract status: "permanent", "temp", "apprentice"), or flags ("execute now", "defer execution").
If you use enums instead of integers (or String codes), you increase compile-time checking and avoid errors from passing in invalid constants, and you document which values are legal to use.
BTW, o...
How do I find a “gap” in running counter with SQL?
...rt into artificial_range( name ) select name from artificial_range;
-- you now have two rows
insert into artificial_range( name ) select name from artificial_range;
-- you now have four rows
insert into artificial_range( name ) select name from artificial_range;
-- you now have eight rows
--etc.
...
How to get an enum which is created in attrs.xml in code
... it here ) with an declare-styleable attribute of type enum. In xml I can now choose one of the enum entries for my custom attribute. Now I want to create an method to set this value programmatically, but I can not access the enum.
...
How to extract epoch from LocalDate and LocalDateTime?
... = time.toEpochSecond(ZoneOffset.UTC) for UTC cases, or where you already know the timezone, or long epoch = time.toEpochSecond(ZoneId.systemDefault()); if you want to go that route.
– Marcus
Mar 19 '19 at 1:30
...
mongo - couldn't connect to server 127.0.0.1:27017
...ress 'Ctrl+c' or quit it.)
Type the command to start mongo now in another window.
Hope this works for you !
for those who want to repair your data files while preserving the original files
mongo recover
...
Resizing an image in an HTML5 canvas
...shop with the resampling set to 'Nearest Neighbor' instead of Bicubic. I know its possible to get this to look right, because this site can do it just fine using a canvas as well. I've tried using the same code they do as shown in the "[Source]" link, but it still looks terrible. Is there somet...
Format timedelta to string
...
As you know, you can get the total_seconds from a timedelta object by accessing the .seconds attribute.
Python provides the builtin function divmod() which allows for:
s = 13420
hours, remainder = divmod(s, 3600)
minutes, seconds =...
When is it right for a constructor to throw an exception?
...
I realize now that I didn't include a link to the original article, blogs.msdn.com/b/ericlippert/archive/2008/09/10/… Things like ArgumentException/ArgumentNullException are boneheaded: just plain bugs in the calling code. He says "...
Git merge two local branches
I have branch Master , branchA and branchB .
Now I'm working in the branchA and I need to merge branchA with branchB and proceed my work in the branchA . All files are comitted in the branchA and branchB .
...