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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
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Jasmine.js comparing arrays
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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
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How to present popover properly in iOS 8
... you talk to the view controller inside of it to set the content size, by calling the property preferredContentSize
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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...
“sending 'const NSString *' to parameter of type 'NSString *' discards qualifiers” warning
I have Constants NSString, that I want to call like:
3 Answers
3
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Sort a text file by line length including spaces
...ou change one field. I guess it's not crazy behaviour. It has this:
"Finally, there are times when it is convenient to force awk to rebuild the entire record, using the current value of the fields and OFS. To do this, use the seemingly innocuous assignment:"
$1 = $1 # force record to be recon...
How do I check if an element is really visible with JavaScript? [duplicate]
In JavaScript, how would you check if an element is actually visible?
16 Answers
16
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Placeholder in IE9
It seems it's a very well known problem but all the solutions I found on Google don't work on my newly downloaded IE9.
11 A...
How to initialize an array's length in JavaScript?
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Why do you want to initialize the length? Theoretically there is no need for this. It can even result in confusing behavior, because all tests that use the length to find out whether an array is empty or not will report that the array is not empty.
Some tests show that settin...