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What's the difference between “version number” in iTunes Connect, “bundle version”, “bundle version
...345 or 1.2.3 (Build 12345AB). This is shown in the About window for Mac OS X apps for example and is often more a "Build Number" than a "Version Number".
Bundle Version String (CFBundleShortVersionString)
This value is used as the "real" version number. This must be the same string as used for the v...
MFC CString::Format()函数详解 - C/C++ - 清泛网 - 专注C/C++及内核技术
...式命令）
d输出带符号十进制数
o输出无符号八进制数
x输出无符号十六进制数
u输出无符号数
c输出单个字符
s输出一串字符
f输出实数（6位小数）
e以指数形式输出实数
g选用f与e格式中输出宽度较小的格式，不输出0 ...
Java URL encoding of query string parameters
...character =.
String q = "random word £500 bank $";
String url = "https://example.com?q=" + URLEncoder.encode(q, StandardCharsets.UTF_8);
When you're still not on Java 10 or newer, then use StandardCharsets.UTF_8.toString() as charset argument, or when you're still not on Java 7 or newer, then use ...
Check if string contains only digits
...wwwald: Some languages implement it differently, but in JavaScript, \d is exactly equivalent to [0-9].
– Ry-♦
Jul 3 '17 at 7:53
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Why does document.querySelectorAll return a StaticNodeList rather than a real Array?
...at I can't just do document.querySelectorAll(...).map(...) even in Firefox 3.6, and I still can't find an answer, so I thought I'd cross-post on SO the question from this blog:
...
Numpy how to iterate over columns of array?
Suppose I have and m x n array. I want to pass each column of this array to a function to perform some operation on the entire column. How do I iterate over the columns of the array?
...
vertical & horizontal lines in matplotlib
...rtical lines at specified limits. I would like to bound the data by this box. However, the sides do not seem to comply with my instructions. Why is this?
...
design a stack such that getMinimum( ) should be O(1)
... solution which doesn't do that though, without wrecking the runtime complexity somewhere (e.g. making push/pop O(n)). Note that this doesn't change the complexity of the space required, e.g. if you've got a stack with O(n) space requirements, this will still be O(n) just with a different constant f...
How to search a specific value in all tables (PostgreSQL)?
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If you want to grep text data (which is typically encoded in more recent versions of postgres), you may need to ALTER DATABASE your_db_name SET bytea_output = 'escape'; on the database (or a copy thereof) before dumping it. (I'm not seeing a way t...
Practical uses for AtomicInteger
...tion (compareAndSet()) to implement non-blocking algorithms.
Here is an example of non-blocking random number generator from Brian Göetz's Java Concurrency In Practice:
public class AtomicPseudoRandom extends PseudoRandom {
private AtomicInteger seed;
AtomicPseudoRandom(int seed) {
...