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Why are margin/padding percentages in CSS always calculated against width?
...te direction; so the width can be calculated from the width of the browser window. The only way elements are wider than the screen is if you specify their width to be larger. Typical block elements are width 100% and expand automatically in the vertical direction (unknown). That's why width doesn...
How can you encode a string to Base64 in JavaScript?
...he special consideration for Unicode strings: developer.mozilla.org/En/DOM/Window.btoa#Unicode_Strings btoa and atob only work properly for ASCII based strings. As an American, you probably won't notice a difference ... but the first time you use an accented character, your code will break.
...
base64 encoded images in email signatures
... multipart/alternative, multipart/related example as an mbox file (save as windows newline format and put a blank line at the end. And, use no extension or the .mbs extension):
From
From: from@example.com
To: to@example.com
Subject: HTML Messages with Embedded Pic in Signature
MIME-Version: 1.0
Co...
Convert a Git folder to a submodule retrospectively?
...It is not recommended to copy and paste everything directly into a command window (even though I have tested this successfully)!
0. Preparation
Variables
# Root directory where repo-org lives
# and a temporary location for git filter-branch
root="$PWD"
temp='/dev/shm/tmp'
# The old repository an...
How can I add reflection to a C++ application?
...in the format you need, and only if you export your classes. This works in Windows, I don't know about other platforms. Using the storage-class specifiers as in, for example:
class __declspec(export) MyClass
{
public:
void Foo(float x);
}
This makes the compiler build the class definition dat...
Why is reading lines from stdin much slower in C++ than Python?
...
@SEK Windows default Stack size is 1MB.
– Étienne
Mar 15 '14 at 2:11
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使用虚拟现实和App Inventor进行实验 · App Inventor 2 中文网
... 顶部 var qrcode = new QRCode("qrcode", { text: window.location.href + "?f=share", //URL地址 width: 150, height: 150, colorDark: '#000000', //二维码颜色 colorLight: "#ffffff" //背景颜色}); App Inventor 2 中文网 MIT同步更新的中文本...
How to implement a rule engine?
...s for C# 2.0 and C#3.0
param.ReferencedAssemblies.Add(@"C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\System.dll");
param.ReferencedAssemblies.Add(@"C:\Program Files\Reference Assemblies\Microsoft\Framework\v3.5\System.Core.dll");
var compileResults = ...
What are the most widely used C++ vector/matrix math/linear algebra libraries, and their cost and be
...tain compilers need special care to prevent crashes on function calls (GCC windows)
GMTL
Benefits: LGPL, Fairly Simple API, specifically designed for graphics engines.
Includes many primitive types geared towards rendering (such as
planes, AABB, quatenrions with multiple interpolation, etc) tha...
Difference between jQuery `click`, `bind`, `live`, `delegate`, `trigger` and `on` functions (with an
...upward through the DOM tree until it reaches the root element (document or window or <html> or <body>, I can't remember exactly).
Either way, you're binding an onclick handler to a all the <td>s within $('#some_element') (you must specify a selector, though you could say $(documen...