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Removing viewcontrollers from navigation stack
...e this code and enjoy:
NSMutableArray *navigationArray = [[NSMutableArray alloc] initWithArray: self.navigationController.viewControllers];
// [navigationArray removeAllObjects]; // This is just for remove all view controller from navigation stack.
[navigationArray removeObjectAtIndex: 2]; // ...
✔ Checkmark selected row in UITableViewCell
...lIdentifier];
if(cell == nil )
{
cell =[[[UITableViewCell alloc] initWithStyle:UITableViewCellStyleSubtitle reuseIdentifier:CellIdentifier] autorelease];
}
if ([indexPath compare:self.lastIndexPath] == NSOrderedSame)
{
cell.accessoryType = UITableViewCellAccesso...
How do I replace multiple spaces with a single space in C#?
...contrast, is linear, only builds up a single string (= drastically reduced allocation costs compared to Joel’s code) and furthermore the engine can optimize the hell out of it (to be honest, I doubt the .NET regex is smart enough for this but in theory this regular expression can be implemented s...
is it possible to update UIButton title/text programmatically?
...ollowing:
[self.loginButton
setAttributedTitle:[[NSAttributedString alloc] initWithString:@"Error !!!" attributes:nil]
forState:UIControlStateDisabled];
[self.loginButton setEnabled:NO];
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“:” (colon) in C struct - what does it mean? [duplicate]
...n fit into a single int (i.e. 32 bits in the example above), the compiler allocates only a single int's worth of memory (test_1, short type for test_2, char type for test3). Ignored in the above example, if a single int can't hold the bitfields anymore, we add a second one. ref to this example for...
Convert Set to List without creating new List
...e given set and then
putting these objects into a new array.
So the newly allocated memory should be negligible.
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How to convert a char to a String?
...ch is less efficient because the StringBuilder is backed by a char[] (over-allocated by StringBuilder() to 16), only for that array to be defensively copied by the resulting String.
String.valueOf(char) "gets in the back door" by wrapping the char in a single-element array and passing it to the pac...
How to extract extension from filename string in Javascript? [duplicate]
... On the contrary 'split' is actually overkill. So many string/array allocations.
– Sayam Qazi
Jun 14 '18 at 5:51
...
How to upper case every first letter of word in a string? [duplicate]
...s can be improved a bit. The length of the string is known, so you can pre-allocate the StringBuilder's length. Since you are going to call StringBuilder.append anyway, don't bother creating a new char[] and String in each loop iteration: just append the capitalized letter, then the rest of the word...
Do you (really) write exception safe code? [closed]
...tor's swap, the vector's swap won't throw if the two vectors have the same allocator (i.e., the normal case), but will make copies if they have different allocators. And thus, I assume it could throw in this last case.
So, the original text still holds: Don't ever write a throwing swap, but nobar's ...