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What are the best practices for SQLite on Android?
...connection. Even if you use it from multiple threads, one connection at a time. The SqliteDatabase object uses java locks to keep access serialized. So, if 100 threads have one db instance, calls to the actual on-disk database are serialized.
So, one helper, one db connection, which is serialize...
Are there benefits of passing by pointer over passing by reference in C++?
...jects. And it will suggest that the argument can be NULL when, most of the time, a NULL value should be forbidden. Read litb's answer for a complete answer.
– paercebal
Dec 3 '08 at 10:12
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Where are static variables stored in C and C++?
... draft [standard].
Memory Area Characteristics and Object Lifetimes
-------------- ------------------------------------------------
Const Data The const data area stores string literals and
other data whose values are known at compile
...
How much faster is C++ than C#?
...t as C++ code. However C++ code used to be significantly faster for a long time, and also today still is in many cases. This is mainly due to the more advanced JIT optimizations being complicated to implement, and the really cool ones are only arriving just now.
So C++ is faster, in many cases. But...
Case preserving substitute in Vim
...
You can just paste and adapt this:
(Of course, if you do this from time to time, you will want a plugin instead of this monstrosity. But for some who are in a hurry and only need it once, this is a quick hack for your pasting pleasure:)
:%s/\cbad\zejob/\= ( submatch(0)[0] is# toupper(subma...
What is Type-safe?
...ose typed language (see Python)), some of them will actually give you a runtime error on invalid type casting.
While its convenient, it opens you up to a lot of errors that can be easily missed, and only identified by testing the running program. Personally, I prefer to have my compiler tell me if ...
Add … if string is too long PHP [duplicate]
...t desired for mobile browsers. What's more, you send full text, while some times it should not be available.
– szamil
Feb 11 '14 at 11:36
17
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How to remove spaces from a string using JavaScript?
...place(/\s+/g, '')
On small texts this is not relevant, but for cases when time is important, e.g. in text analisers, especially when interacting with users, that is important.
On the other hand, \s+ handles wider variety of space characters. Among with \n and \t, it also matches \u00a0 character...
What is the pythonic way to detect the last element in a 'for' loop?
...
Most of the times it is easier (and cheaper) to make the first iteration the special case instead of the last one:
first = True
for data in data_list:
if first:
first = False
else:
between_items()
item()
T...
Split string to equal length substrings in Java
... @JeffreyBlattman I doubt that you got the exception at compile time…
– Holger
Sep 20 '19 at 12:49
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