大约有 22,000 项符合查询结果（耗时：0.0272秒） [XML]
Type-juggling and (strict) greater/lesser-than comparisons in PHP
... confusion here (and in many other situations). When comparing numbers and strings and special values type conversions are done before the operators, so strictly speaking comparison operators are not confusing, casting is...
– ivanhoe
Apr 6 '13 at 13:11
...
What is a regular expression for a MAC Address?
... as 0102-0304-abcd
^([[:xdigit:]]{2}[:.-]?){5}[[:xdigit:]]{2}$
Example strings which it matches:
01:02:03:04:ab:cd
01-02-03-04-ab-cd
01.02.03.04.ab.cd
0102-0304-abcd
01020304abcd
Mixed format will be matched also!
sha...
Select something that has more/less than x character
...
MSDN for it states:
Returns the number of characters of the specified string expression,
excluding trailing blanks.
Here's the link to the MSDN
For oracle/plsql you can use Length(), mysql also uses Length.
Here is the Oracle documentation:
http://www.techonthenet.com/oracle/functions/le...
CoffeeScript on Windows?
...ll
CoffeeScript.compile(code);
... to get back the compiled JavaScript string.
UPDATE 2012-04-12: Cygwin is no longer needed to run Node on Windows. Microsoft
worked with Joyent through 2H 2011 to improve node's support for
Windows IOCP async IO. Node 0.6 was the first release of node to...
Use of #pragma in C
...etween members) in MSVC:
#pragma pack(push, 1)
struct PackedStructure
{
char a;
int b;
short c;
};
#pragma pack(pop)
// sizeof(PackedStructure) == 7
Here's how you'd do the same thing in GCC:
struct PackedStructure __attribute__((__packed__))
{
char a;
int b;
short c;
};
// sizeof(Pa...
Ukkonen's suffix tree algorithm in plain English
...ical symbology. The closest to a good explanation that I've found is Fast String Searching With Suffix Trees , but he glosses over various points and some aspects of the algorithm remain unclear.
...
Why is  appearing in my HTML? [duplicate]
...r, $win32);
}
}
}
// Searching for BOM in files
function SearchBOM($string) {
if(substr($string,0,3) == pack("CCC",0xef,0xbb,0xbf)) return true;
return false;
}
?>
</body>
</html>
copy this code to php file upload to root and run it.
for more about this: http://for...
Can a decorator of an instance method access the class?
...t classes ( not manipulating the actual class type object), you can pass a string for each class. You can also pass whatever other parameters you like to the decorator using class-style decorators.
class Decorator(object):
def __init__(self,decoratee_enclosing_class):
self.decoratee_enc...
Determine device (iPhone, iPod Touch) with iOS
...
You can use the UIDevice class like this:
NSString *deviceType = [UIDevice currentDevice].model;
if([deviceType isEqualToString:@"iPhone"])
// it's an iPhone
share
|
...
Angular - ui-router get previous state
...f the user is logged in or not.
appSettings are constants just for not use strings everywhere. appSettings.states.login and appSettings.states.register contain the name of the state for the login and register url.
Then in any controller/service etc you need to inject $state service and you can acc...