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Is a GUID unique 100% of the time?
... Technically, it is not 2^128, because in a v4 GUID, you have one hex digit that will always be a 4 (effectively removing 4 bits), and two bits further on are also reserved. However, 2^122 valid V4 GUIDs still leaves about 5x10^36, which will do for me. and for you too. Each star will hav...
Why do we need C Unions?
...e output is not 3: ideone.com/MKjwon I'm not sure why Adam is printing as hex, though.
– endolith
Feb 21 '13 at 17:19
...
How to style icon color, size, and shadow of Font Awesome Icons
...idden="true" style="color:#00cc6a"></i>
You can change the hex code to your preference.
NOTE: The text colour will change the icon colour as well unless there is a style="color:#00cc6a" within the i tag.
sha...
App Inventor 2 试验组件 · App Inventor 2 中文网
...应具有透明的Alpha值，源可以是 Canvas 组件、Image 组件或字符串代表文件的路径。
使用遮罩编辑图像(imageSource,遮罩源,提示)
使用给定的描述编辑 遮罩源。图像的可编辑区域应该是由 遮罩源 指示。源可以是画布、图像或字符...
__attribute__ - C/C++ - 清泛网 - 专注C/C++及内核技术
...使编译器检查函数声明和函数实际调用参数之间的格式化字符串是否匹配。该功能十分有用，尤其是处理一些很难发现的bug。
format的语法格式为：
format (archetype, string-index, first-to-check)
format属性告诉编译器，按照printf, ...
Android. WebView and loadData
...or octets inside the range of safe URL characters and use the standard %xx hex encoding of URLs for octets outside that range. For example, '#', '%', '\', '?' should be replaced by %23, %25, %27, %3f respectively.
The 'data' scheme URL formed by this method uses the default US-ASCII charset. If...
What is the difference between parseInt() and Number()?
...eInt("010", 10); // 10, decimal radix used
But it can handle numbers in hexadecimal notation, just like parseInt:
Number("0xF"); // 15
parseInt("0xF"); //15
In addition, a widely used construct to perform Numeric type conversion, is the Unary + Operator (p. 72), it is equivalent to using the N...
Regex to check whether a string contains only numbers [duplicate]
...asker wanted and if I were to reject malformed octal, I should match valid hex and decide whether to include Python3/Java numbers like 123_456 or C++ 123'456. \d+ seems like a middle ground in the absence of more context like a specific programming or human language and was strongly suggested by th...
Producing a new line in XSLT
...stand why it might not work for us sometimes.
First of all, the &#xa (hex) or &#10 (dec) inside a <xsl:text/> will always work, but you may not see it.
There is no newline in a HTML markup. Using a simple <br/> will do fine. Otherwise you'll see a white space. Viewing the sou...
Unicode character in PHP string
...sequence of characters matching the regular expression is a
character in hexadecimal notation.
ASCII example:
<?php
echo("\x48\x65\x6C\x6C\x6F\x20\x57\x6F\x72\x6C\x64\x21");
?>
Hello World!
So for your case, all you need to do is $str = "\x30\xA2";. But these are bytes, not cha...