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How can I dynamically create a selector at runtime with Objective-C?
... theMethod:(id)methodArg];, you'd write...
void (^impBlock)(id,id) = ^(id _self, id methodArg) {
[_self doSomethingWith:methodArg];
};
and then you need to generate the IMP block dynamically, this time, passing, "self", the SEL, and any arguments...
void(*impFunct)(id, SEL, id) = (void*...
Is a URL allowed to contain a space?
Is a URI (specifically an HTTP URL) allowed to contain one or more space characters? If a URL must be encoded, is + just a commonly followed convention, or a legitimate alternative?
...
How can I efficiently select a Standard Library container in C++11?
...ecause list is not such a good container in general, and neither is forward_list. Both lists are very specialized containers for niche applications.
To build such a chart, you just need two simple guidelines:
Choose for semantics first
When several choices are available, go for the simplest
Wor...
Entity Framework VS LINQ to SQL VS ADO.NET with stored procedures? [closed]
...ity operations (CRUD) you will find just about equivalent performance with all three technologies. You do have to know how EF and Linq to SQL work in order to use them to their fullest. For high-volume operations like polling queries, you may want to have EF/L2S "compile" your entity query such th...
Jasmine.js comparing arrays
...
this falls back on "==" in javascript by default. This is just not safe since not only the actual values are compared, but the whole object.
– Peter
Nov 12 '14 at 11:00
...
Error installing libv8: ERROR: Failed to build gem native extension
...
try this one:
gem install libv8 -v '3.16.14.3' -- --with-system-v8
Note : Because libv8 is the interface for the V8 engine used by therubyracer,
you may need to use libv8, even if you have V8 installed already. If
you wish to use your ow...
Download file of any type in Asp.Net MVC using FileResult?
I've had it suggested to me that I should use FileResult to allow users to download files from my Asp.Net MVC application. But the only examples of this I can find always has to do with image files (specifying content type image/jpeg).
...
Long press gesture on UICollectionViewCell
...ILongPressGestureRecognizer *lpgr
= [[UILongPressGestureRecognizer alloc]
initWithTarget:self action:@selector(handleLongPress:)];
lpgr.delegate = self;
lpgr.delaysTouchesBegan = YES;
[self.collectionView addGestureRecognizer:lpgr];
}
-(void)handleLongPress:...
What is the most efficient way to concatenate N arrays?
...w array that concatenates two existing arrays, it appears concat() is generally faster. For the case of concatenating an array onto an existing array in place, push() is the way to go. I updated my answer.
– Tim Down
Apr 22 '12 at 22:12
...
What is %2C in a URL?
... | RS | 3E | > | 5E | ^ | 7E | ~ |
| 1F | US | 3F | ? | 5F | _ | 7F | DEL |
+----+-----+----+-----+----+-----+----+-----+
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