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Can an array be top-level JSON-text?
...ed value."
ECMA-404: Any JSON value. "A JSON text is a sequence of tokens formed from Unicode code points that conforms to the JSON value
grammar."
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How do I match any character across multiple lines in a regular expression?
... = "abcde\n fghij<Foobar>"; expression = '(.*)<Foobar>*'; [tokens,matches] = regexp(str,expression,'tokens','match'); (tokens contain a abcde\n fghij item).
Also, in all of boost's regex grammars the dot matches line breaks by default. Boost's ECMAScript grammar allows you to tu...
Asp.net - Add blank item at top of dropdownlist
...e databound items.
for details see
http://imar.spaanjaars.com/QuickDocId.aspx?quickdoc=281 or
http://msdn.microsoft.com/en-us/library/system.web.ui.webcontrols.listcontrol.appenddatabounditems.aspx
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Asynchronously wait for Task to complete with timeout
...at runtime.
int timeout = 1000;
var task = SomeOperationAsync(cancellationToken);
if (await Task.WhenAny(task, Task.Delay(timeout, cancellationToken)) == task)
{
// Task completed within timeout.
// Consider that the task may have faulted or been canceled.
// We re-await the task so tha...
Is key-value observation (KVO) available in Swift?
...d in Using Key-Value Observing in Swift:
class MyObject {
private var token: NSKeyValueObservation
var objectToObserve = Foo()
init() {
token = objectToObserve.observe(\.bar) { [weak self] object, change in // the `[weak self]` is to avoid strong reference cycle; obviously, i...
Using a 'using alias = class' with generic types? [duplicate]
...ate one for a List<int>. msdn.microsoft.com/en-us/library/sf0df423.aspx
– Sergey Mirvoda
Feb 8 '11 at 18:41
...
grep exclude multiple strings
...e.txt:
abc
def
ghi
jkl
grep command using -E option with a pipe between tokens in a string:
grep -Ev 'def|jkl' filename.txt
prints:
abc
ghi
Command using -v option with pipe between tokens surrounded by parens:
egrep -v '(def|jkl)' filename.txt
prints:
abc
ghi
...
What do the parentheses around a function name mean?
...heses, but expansion of a function-like macro only takes place if the next token is a left parenthesis (C99, 6.10.3§10), thus foo (int* bar) would get replaced, but not (foo) (int *bar) (the next token after foo is ))
– Virgile
Nov 28 '12 at 9:48
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How to link Docker services across hosts?
...X),
# as long as the other nodes can reach it, it is fine.
$ swarm join --token=6856663cdefdec325839a4b7e1de38e8 --addr=<node_ip:2375>
# start the manager on any machine or your laptop
$ swarm manage --token=6856663cdefdec325839a4b7e1de38e8 --addr=<swarm_ip:swarm_port>
# use the regul...
Is HTML5 localStorage asynchronous?
...
my problem is that I set an auth token in local storage, and then redirect user to another view. Sometimes on the new view access local storage finds that the token wasn't saved yet, so I have to use a timeout, but still not 100% reliable.
...