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How does this giant regex work?
...K+KBi4PJfDd3nkDXbqxhhrKVIZMLyGDMuRm5MCd+xKCD0b8qvIopmNkCLWFkulPJPMaEa4xP1+PEtcFZmph0aLeRVUa7VoOzWRSQu6k9bakdGw4R2zpdZ6XOmVnTx0zD63k39xezgoo5HC8TyezWHw1+gEsibMddu2vbVSLg+Ei/D12bu3bduqwaapX+jgYqoQK+gecxFexBcX9kXdqqC3C0j2vDrY5jJ2DfEuF/uF2MFheDwu6qPUpibb6uTBQ2pm/QtJJVzek/2R7IdQWse0os2PcLuszdhXYR4Nm/CtO+...
What do 'real', 'user' and 'sys' mean in the output of time(1)?
... mode - things like allocating memory or accessing hardware (HDD, network, etc.). These are under the supervision of the kernel, and it alone can do them. Some operations like malloc orfread/fwrite will invoke these kernel functions and that then will count as 'sys' time. Unfortunately it's not as s...
JavaScript closures vs. anonymous functions
...lexical grand parent function, in the lexical grand-grand parent function, etc.
This can be seen as a scope chain; scope of current function -> scope of lexical parent function -> scope of lexical grand parent function -> ... until the last parent function that has no lexical parent.
Th...
Shell脚本编程30分钟入门 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...接赋值，还可以用语句给变量赋值，如：
for file in `ls /etc`
使用变量
使用一个定义过的变量，只要在变量名前面加美元符号即可，如：
your_name="qinjx"
echo $your_name
echo ${your_name}
变量名外面的花括号是可选的，加不加都行...
What are the most interesting equivalences arising from the Curry-Howard Isomorphism?
...u had first-order features, there would be a kind other than *, * -> *, etc.; the kind of elements of the domain of discourse. For example, in Father(X,Y) :- Parent(X,Y), Male(X), X and Y range over the domain of discourse (call it Dom), and Male :: Dom -> *.
...
How to use glOrtho() in OpenGL?
... every time I need to do 2D graphics in OpenGL (such as health bars, menus etc)
using the following code every time the window is resized:
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
glOrtho(0.0f, windowWidth, windowHeight, 0.0f, 0.0f, 1.0f);
This will remap the OpenGL coordinates into the equ...
How to update Python?
...tall over top, does it retain the external modules like pygame, bs4, lxml, etc. which I downloaded?
– user3917838
Sep 13 '15 at 15:59
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Mail multipart/alternative vs multipart/mixed
...ments);
}
//msg.setText(message, "utf-8");
//msg.setContent(message,"text/html; charset=utf-8");
return mpMixed;
}
private Multipart newChild(Multipart parent, String alternative) throws MessagingException {
MimeMultipart child = new MimeMultipart(a...
In Python, how do I determine if an object is iterable?
... What if some_object throws TypeError caused by other reason(bugs etc.) too? How can we tell it from the "Not iterable TypeError"?
– Shaung
Sep 13 '11 at 7:34
...
HTML5 best practices; section/header/aside/article elements
...its containing element: who wrote it, copyright, links to related content, etc. Whereas we usually have one footer for an entire document, HTML5 allows us to also have footer within sections.
Source: https://clzd.me/html5-section-aside-header-nav-footer-elements-not-as-obvious-as-they-sound/
...