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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...
What's a redirect URI? how does it apply to iOS app for OAuth2.0?
...redirected after successfully login to your app. for example to get access token for your app in facebook you need to subimt redirected uri which is nothing only the app Domain that your provide when you create your facebook app.
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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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Why do all browsers' user agents start with “Mozilla/”?
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Mozilla/5.0 is the general token that says the browser is Mozilla compatible, and is common to almost every browser today.
for more detail click here
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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 do I explicitly instantiate a template function?
...mplate ‘int function_name’
a.cpp:1: error: expected `;' before ‘(’ token
a.cpp:3: error: ‘function_name’ is not a template function
which is clearly different from what OP cited.
In this variant the second line is ok (<int> can be omitted here), but the first line is faulty. The...
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 ...
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
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