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How to obtain the start time and end time of a day?
... switched to the new classes.
Comparing data from other sources becomes faulty if they employ other resolutions. For example, Unix libraries typically employ whole seconds, and databases such as Postgres resolve date-time to microseconds.
Some Daylight Saving Time changes happen over midnight which ...
Is it possible to use global variables in Rust?
...ruct {
number: 10,
string: "Some string",
};
static mut db: Option<sqlite::Connection> = None;
fn main() {
println!("{}", SOME_INT);
println!("{}", SOME_STR);
println!("{}", SOME_STRUCT.number);
println!("{}", SOME_STRUCT.string);
unsafe {
db = Some(open_d...
How to get position of a certain element in strings vector, to use it as an index in ints vector?
...pair of iterators into the same container, even in situations when the result is negative. If we use size_t we must be careful not to subtract a larger iterator from a smaller iterator.
– dasblinkenlight
Oct 17 '17 at 10:49
...
Does Java 8 provide a good way to repeat a value or function?
...y other languages, eg. Haskell, it is easy to repeat a value or function multiple times, eg. to get a list of 8 copies of the value 1:
...
List all sequences in a Postgres db 8.1 with SQL
...here I was digging around in preferences to find a place to set it as default to no avail). Hm, now if only we had a "asker-accepted answer doesn't automatically trump everything else"-option, that would be a truly great victory for posterity.
– SeldomNeedy
Jul...
Which comment style should I use in batch files?
...
Comments with REM
A REM can remark a complete line, also a multiline caret at the line end, if it's not the end of the first token.
REM This is a comment, the caret is ignored^
echo This line is printed
REM This_is_a_comment_the_caret_appends_the_next_line^
echo This line is part o...
Replace only some groups with Regex
...
Another way, slightly messy, could be using a lookbehind/lookahead:
(?<=-)(\d+)(?=-)
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What is a non-capturing group in regular expressions?
...(https?|ftp)://([^/\r\n]+)(/[^\r\n]*)?
... I would get the following result:
Match "http://stackoverflow.com/"
Group 1: "http"
Group 2: "stackoverflow.com"
Group 3: "/"
Match "https://stackoverflow.com/questions/tagged/regex"
Group 1: "https"
Group 2: "stackoverflow.com"...
How to show android checkbox at right side?
By default android checkbox shows
text at right side and checkbox at left
I want to show checkbox at right side with text at left
...
How to express infinity in Ruby?
... 1.9.2, you can use:
>> Float::INFINITY #=> Infinity
>> 3 < Float::INFINITY #=> true
Or you can create your own constant using the following*:
I've checked that in Ruby 1.8.6, 1.8.7, and 1.9.2 you have Float.infinite?.
PositiveInfinity = +1.0/0.0
=> Infinity
NegativeInf...