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How to convert int to QString?
...ter way? I have encountered a problem where this version almost takes more time than the entire processing afterwards...
– Zeks
Apr 4 '17 at 18:22
...
Should I use string.isEmpty() or “”.equals(string)?
... top of that, client software can run on various operating systems and sometimes with limited memory, which means you often won't have the budget/resources to test everything. - Yes, I have customers that still stick with Java 5 in 2017.
– bvdb
Apr 26 '17 at 8:...
What is the use of static constructors?
...uration data into readonly fields, etc.
It is run automatically by the runtime the first time it is needed (the exact rules there are complicated (see "beforefieldinit"), and changed subtly between CLR2 and CLR4). Unless you abuse reflection, it is guaranteed to run at most once (even if two thread...
Why is there no SortedList in Java?
...uldn't have to do this.
You can write your own List class that sorts each time you add a new element. This can get rather computation heavy depending on your implementation and is pointless, unless you want to do it as an exercise, because of two main reasons:
It breaks the contract that List<...
Quicksort vs heapsort
... typically somewhat slower than
quicksort, but the worst-case running
time is always Θ(nlogn). Quicksort is
usually faster, though there remains
the chance of worst case performance
except in the introsort variant, which
switches to heapsort when a bad case
is detected. If it is know...
Check if a file exists with wildcard in shell script [duplicate]
...nally and exit as soon as at it finds one matching file, rather than waste time processing a potentially huge list of them expanded by the shell; this also avoids the risk that the shell might overflow its command line buffer.
if test -n "$(find /dir/to/search -maxdepth 1 -name 'files*' -print -qui...
How do I access named capturing groups in a .NET Regex?
I'm having a hard time finding a good resource that explains how to use Named Capturing Groups in C#. This is the code that I have so far:
...
Get the index of the nth occurrence of a string?
...olutions are suboptimal, because then I have to relearn regexs for the nth time. The code is essentially more difficult to read when regexes are used.
– Mark Rogers
May 28 '15 at 17:27
...
HTTP authentication logout via PHP
...ce (or even working! see comments) solution):
Disable his credentials one time.
You can move your HTTP authentication logic to PHP by sending the appropriate headers (if not logged in):
Header('WWW-Authenticate: Basic realm="protected area"');
Header('HTTP/1.0 401 Unauthorized');
And parsing th...
What is a 'multi-part identifier' and why can't it be bound?
... Day saver comment for newcomers: just check out your typo, sometimes it occurs when you are missing a little piece. In my issue, it was OBJECT_ID(Schema.Table) without any quotes in a 50+ lines query.
– Abdullah Ilgaz
May 17 at 16:51
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