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What is mattr_accessor in a Rails module?
I couldn't really find this in Rails documentation but it seems like 'mattr_accessor' is the Module corollary for 'attr_accessor' (getter & setter) in a normal Ruby class .
...
What is an application binary interface (ABI)?
...but the API does not, then the old and new library versions are sometimes called "source compatible". This implies that while a program compiled for one library version will not work with the other, source code written for one will work for the other if re-compiled.
For this reason, developers ten...
Allowed characters in filename [closed]
Where can I find a list of allowed characters in filenames, depending on the operating system?
(e.g. on Linux, the character : is allowed in filenames, but not on Windows)
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How can I extract the folder path from file path in Python?
....path.split(os.path.abspath(existGDBPath))
('T:\\Data\\DBDesign', 'DBDesign_93_v141b.mdb')
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也来说说ReactOS的调试 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...调试的.所以我就找了先下fDebug的的代码.在D:\ReactOS\ReactOS_src\boot\freeldr\fdebug这个目录下.
这里我啰嗦下.源代码的路径别放到目录中有空格的文件夹中,有时会导致不能编译.例如,以前我把源码放在了D:\Program Files\ReactOS_src\boot\freeldr\...
NSRange to Range
...dited Jan 4 '17 at 14:30
juancazalla
9461010 silver badges1616 bronze badges
answered Oct 22 '14 at 21:46
Alex...
@ variables in Ruby on Rails
...cope (current block)
@title is an instance variable - and is available to all methods within the class.
You can read more here:
http://strugglingwithruby.blogspot.dk/2010/03/variables.html
In Ruby on Rails - declaring your variables in your controller as instance variables (@title) makes them ava...
How to encrypt/decrypt data in php?
...er generator. The following example would be recommended (>= 5.3):
$key_size = 32; // 256 bits
$encryption_key = openssl_random_pseudo_bytes($key_size, $strong);
// $strong will be true if the key is crypto safe
This can be done once or multiple times (if you wish to create a chain of encrypti...
Checkbox for nullable boolean
...iad of different reasons why the foo input might not appear on the page at all. If it does appear I can assume there's a value, but I need to be able to differentiate between when the model is posted with foo as unchecked and when foo isn't shown.
– DMulligan
J...
jQuery UI: Datepicker set year range dropdown to 100 years
...ed):
for (a.yearshtml+='<select class="ui-datepicker-year" onchange="DP_jQuery_'+y+".datepicker._selectMonthYear('#"+
a.id+"', this, 'Y');\" onclick=\"DP_jQuery_"+y+".datepicker._clickMonthYear('#"+a.id+"');\">";b<=g;b++)
a.yearshtml+='<option value="'+b+'"'+(b==c?' selected="selected"...
