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Print in one line dynamically
...s about this that may be surprising:
The \r goes at the beginning of the string so that, while the program is running, the cursor will always be after the number. This isn't just cosmetic: some terminal emulators get very confused if you do it the other way around.
If you don't include the last l...
what is faster: in_array or isset? [closed]
...ated and contain non-hashable objects. Keys must be unique and can only be strings and integers which makes them easily hashable. While you could create a one-to-one map that hashes both keys and values, this isn't how PHP's array works.
– David Harkness
Nov 20...
Why are unnamed namespaces used and what are their benefits?
...ace unique;
namespace unique { /* namespace body. stuff in here */ }
The extra step using the empty body is important, so you can already refer within the namespace body to identifiers like ::name that are defined in that namespace, since the using directive already took place.
This means you ca...
Load view from an external xib file in storyboard
...want to reference:
public protocol NibLoadable {
static var nibName: String { get }
}
public extension NibLoadable where Self: UIView {
public static var nibName: String {
return String(describing: Self.self) // defaults to the name of the class implementing this protocol.
}
...
What is a vertical tab?
What was the original historical use of the vertical tab character ( \v in the C language, ASCII 11)?
10 Answers
...
Difference between CR LF, LF and CR line break types?
...always sent with the CR
first. In fact, it was often necessary
to send extra characters (extraneous
CRs or NULs, which are ignored) to
give the print head time to move to
the left margin. Even after teletypes
were replaced by computer terminals
with higher baud rates, many operating
...
Using curl POST with variables defined in bash script functions
...i.e. 1:
Simply add ' before and after $variable when replacing desired
string
for i in {1..3}; do \
curl -X POST -H "Content-Type: application/json" -d \
'{"number":"'$i'"}' "https://httpbin.org/post"; \
done
2. For input with spaces:
Wrap variable with additional " i.e. "el a":
decla...
Tablix: Repeat header rows on each page not working - Report Builder 3.0
...n the <TablixRowHierarchy>. I took my best guess as to which was the extra (one that wrapped the group) and removed it. This version failed to render, but the error message indicated that a row needed to have its <Repeat...> and <KeepWith...> settings changed to match the previous ...
SQL: deleting tables with prefix
...
Note to self.Increase num of max char: SET SESSION group_concat_max_len = 999999999;
– Mohammed Joraid
Apr 12 '15 at 0:59
2
...
Rearrange columns using cut
...areful to quote the values "$col2" and "$col1" -- there could be shell metacharacters or other shenanigans in the data.
– tripleee
Mar 29 '17 at 5:08
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