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Combine multiple Collections into a single logical Collection?
...llections (e.g. 3 ArrayLists) as members of a class. Now, I want to expose all the elements to other classes so they can simply iterate over all elements (ideally, read only).
I'm using guava collections and I wonder how I could use guava iterables/iterators to generate a logical view on the interna...
How do you set, clear, and toggle a single bit?
... behaviour to shift by more than the width of a long. The same applies to all the rest of the examples.
Clearing a bit
Use the bitwise AND operator (&) to clear a bit.
number &= ~(1UL << n);
That will clear the nth bit of number. You must invert the bit string with the bitwise NOT op...
Cocoa Touch: How To Change UIView's Border Color And Thickness?
...st a heads up for others. Xcode suggests bridging UIColor to CGColorRef as __bridge CGColorRef. This does not work. It needs to be [UIColor blackColor].CGColor as mentioned in answer.
– GoodSp33d
Jul 10 '14 at 5:05
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Setting element of array from Twig
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This is so silly. Why doesn't twig allow the ability to set array values?
– Matt Cavanagh
Aug 2 '16 at 8:48
1
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CSS hexadecimal RGBA?
... to #00FF00).
8 digits
The first 6 digits are interpreted identically to the 6-digit notation. The last pair of digits, interpreted as a hexadecimal number, specifies the alpha channel of the color, where 00 represents a fully transparent color and ff represent a fully opaque color.
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VC菜单命令详解(文件打开、保存与关闭) - C/C++ - 清泛网 - 专注C/C++及内核技术
...件打开、保存与关闭)第一部分：五个命令ID： 处理函数ID_FILE_NEW CWinApp::OnFileNewID_FILE_OPEN CWinApp::OnFileOpenID_FILE_SAVE CDocument::OnFileSav...第一部分：
五个命令ID： 处理函数
ID_FILE_NEW CWinApp::OnFileNew
ID_FILE_OPEN CWinApp::OnFileOpen
I...
Split string into array of character strings
...
This is indeed a regex-expression, called a negative lookahead. Checkout the documentation here: docs.oracle.com/javase/6/docs/api/java/util/regex/…
– Erwin
May 28 '14 at 8:51
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How to create directories recursively in ruby?
...c/d.txt, but I do not know if any of these directories exist". My solution allows to use the existing file path ('/a/b/c/d.txt'), and, without separate parsing, create all the folders.
– Vadym Tyemirov
Oct 9 '19 at 4:47
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jQuery: checking if the value of a field is null (empty)
...ype]').val().length != 0){}
If you want to check if the element exist at all, you should do that before calling val:
var $d = $('#person_data[document_type]');
if ($d.length != 0) {
if ($d.val().length != 0 ) {...}
}
s...
How to play audio?
... has a audio format compatibility table. new Audio() can play WAV files in all browsers except Internet Explorer.
– Rory O'Kane
Mar 15 '15 at 14:18
311
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