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Which Java Collection should I use?
...ements requires all neighboring elements (to the right) be shifted into or out of that space. Accessing any element is fast, as it only requires the calculation (element-zero-address + desired-index * element-size) to find it's location. In most situations, an ArrayList is preferred over a LinkedLis...
What special characters must be escaped in regular expressions?
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For PCRE, and most other so-called Perl-compatible flavors, escape these outside character classes:
.^$*+?()[{\|
and these inside character classes:
^-]\
For POSIX extended regexes (ERE), escape these outside character classes (same as PCRE):
.^$*+?()[{\|
Escaping any other characters is ...
What are the differences between a pointer variable and a reference variable in C++?
...tb)
Const references can be bound to temporaries. Pointers cannot (not without some indirection):
const int &x = int(12); //legal C++
int *y = &int(12); //illegal to dereference a temporary.
This makes const& safer for use in argument lists and so forth.
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How to pattern match using regular expression in Scala?
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Liked the answer very much, but when tried to use it outside REPL it locked (i.e. exactly the same code that worked in REPL didn't work in running app). Also there is a problem with using the $ sign as a line end pattern: the compiler complains about lack of string termination....
Unable to load DLL 'SQLite.Interop.dll'
... Tried quite a few solutions posted here, this one actually worked out best.
– Batman
Aug 26 '15 at 17:24
2
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How to kill a child process after a given timeout in Bash?
...and with no apparent reason (closed source, so there isn't much I can do about it). As a result, I would like to be able to launch this process for a given amount of time, and kill it if it did not return successfully after a given amount of time.
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When writing a directive in AngularJS, how do I decide if I need no new scope, a new child scope, or
...hing similar to a flowchart that walks me through a bunch of questions and out pops the correct answer – no new new scope, new child scope, or new isolate scope – but that is likely asking for too much. Here's my current paltry set of guidelines:
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How can jQuery deferred be used?
...etches the data and adds it to the cache. The $.when/.then doesn't care about any of this; all you need to be concerned about is using the response, which is passed to the .then() handler in both cases. jQuery.when() handles a non-Promise/Deferred as a Completed one, immediately executing any .done...
Artificially create a connection timeout error
I've had a bug in our software that occurs when I receive a connection timeout. These errors are very rare (usually when my connection gets dropped by our internal network). How can I generate this kind of effect artificially so I can test our software?
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Unable to verify leaf signature
...to the node.js binary (2) the operating system keystore. If your certs are out of date you will need to include this in your running code. It doesn't change the node binary nor your operating system - just the project folder.
– coolaj86
Mar 5 '19 at 23:15
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