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Difference between new and override
... on the type of the variable depends on which method will get called. For example:
BaseClass instance1 = new SubClass();
instance1.DoIt(); // Calls base class DoIt method
SubClass instance2 = new SubClass();
instance2.DoIt(); // Calls sub class DoIt method
This can be really confusing and result...
Passing variables through handlebars partial
I'm currently dealing with handlebars.js in an express.js application. To keep things modular, I split all my templates in partials.
...
How do I convert Long to byte[] and back in java
...
public byte[] longToBytes(long x) {
ByteBuffer buffer = ByteBuffer.allocate(Long.BYTES);
buffer.putLong(x);
return buffer.array();
}
public long bytesToLong(byte[] bytes) {
ByteBuffer buffer = ByteBuffer.allocate(Long.BYTES);
buffer.pu...
“did you run git update-server-info” error on a Github repository
...e repo. Added the github account as a collaborator for the repo and that fixed it.
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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...
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 ...
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 ...
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:
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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?
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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...