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How do I show/hide a UIBarButtonItem?
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Save your button in a strong outlet (let's call it myButton) and do this to add/remove it:
// Get the reference to the current toolbar buttons
NSMutableArray *toolbarButtons = [self.toolbarItems mutableCopy];
// This is how you remove the button from the toolbar and...
Remove all occurrences of a value from a list?
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I wouldn't call this solution the best. List comprehensions are faster and easier to understand while skimming through code. This would rather be more of a Perl way than Python.
– Peter Nimroot
Aug...
PHP 5 disable strict standards error
...debug_mode(). So you have to change the level AFTER this function has been called ( in a file not checked into git so that's development only ), or either modify directly the error_reporting() call
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Difference between OData and REST web services
...at is not available, or linked to in the response. It is what REST people call out-of-band information and introduces hidden coupling between the client and server.
The other coupling that is introduced is through the use of EDMX metadata to define the properties contained in the entry content. ...
How to generate a random string in Ruby
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+1 for the shortest version (that doesn't call external binaries ^^). If the random string isn't public facing, I sometimes even just use rand.to_s; ugly, but works.
– Jo Liss
Feb 3 '11 at 12:43
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how to concatenate two dictionaries to create a new one in Python? [duplicate]
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Slowest and doesn't work in Python3: concatenate the items and call dict on the resulting list:
$ python -mtimeit -s'd1={1:2,3:4}; d2={5:6,7:9}; d3={10:8,13:22}' \
'd4 = dict(d1.items() + d2.items() + d3.items())'
100000 loops, best of 3: 4.93 usec per loop
Fastest: exploit the dict c...
Awk学习笔记 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...组。
ERRNO
最后一个系统错误的描述。
FIELDWIDTHS
字段宽度列表(用空格键分隔)。
FILENAME
当前文件名。
FNR
同NR，但相对于当前文件。
FS
字段分隔符(默认是任何空格)。
IGNORECASE
如果为真...
How can I use interface as a C# generic type constraint?
...mance by checking each type only once rather than every time the method is called.
– phoog
Feb 6 '12 at 17:50
9
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How to get the full url in Express?
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Here is a great way to add a function you can call on the req object to get the url
app.use(function(req, res, next) {
req.getUrl = function() {
return req.protocol + "://" + req.get('host') + req.originalUrl;
}
return next();
});
Now you have a ...
Create a new object from type parameter in generic class
...suggestion then? Not trying to start anything (actually want to learn) but calling it hacky and redundant infers you know of another way that you aren't sharing :)
– perry
Feb 25 at 23:14
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