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How do I trim leading/trailing whitespace in a standard way?
... to store the result. If it is too small, the output is
// truncated.
size_t trimwhitespace(char *out, size_t len, const char *str)
{
if(len == 0)
return 0;
const char *end;
size_t out_size;
// Trim leading space
while(isspace((unsigned char)*str)) str++;
if(*str == 0) // All sp...
Remove duplicate lines without sorting [duplicate]
...o a duplicate of this - but perhaps worth adding...
The principle behind @1_CR's answer can be written more concisely, using cat -n instead of awk to add line numbers:
cat -n file_name | sort -uk2 | sort -n | cut -f2-
Use cat -n to prepend line numbers
Use sort -u remove duplicate data (-k2 says '...
XMLHttpRequest status 0 (responseText is empty)
...red Apr 16 '12 at 11:58
Abhishek_8Abhishek_8
57144 silver badges22 bronze badges
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Deleting Objects in JavaScript
...s an indepth explination: perfectionkills.com/understanding-delete/#firebug_confusion
– Tarynn
Mar 28 '13 at 20:13
2
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Spring get current ApplicationContext
...n test) that caused a lot of tricky bugs.
– Oleksandr_DJ
Jun 26 '18 at 19:54
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How to update the value stored in Dictionary in C#?
... answered Jun 17 '14 at 4:19
max_forcemax_force
63966 silver badges1111 bronze badges
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Count characters in textarea
... relevance of IDs of textarea and second span : id="post" <-> id="rem_post" and the title of the span that holds the desired characters amount of each particular textarea
<textarea class="countit" name="post" id="post"></textarea>
<p>
<span>characters remaining: <...
Swift make method parameter mutable?
...eclare an inout parameter. Think: passing in a pointer.
func reduceToZero(_ x: inout Int) {
while (x != 0) {
x = x-1
}
}
var a = 3
reduceToZero(&a)
print(a) // will print '0'
This can be particularly useful in recursion.
Apple's inout declaration guidelines can be found...
Linking to an external URL in Javadoc?
...
I recommend <a href="http://google.com" target="_top">http://google.com</a>. The reason for adding target="_top" is because some of the generated javadoc html files make use of frames, and you probably want the navigation to affect the whole page rather than just...
Cocoa Core Data efficient way to count entities
... = [NSEntityDescription entityForName:@"YourEntity" inManagedObjectContext:_managedObjectContext];
NSFetchRequest *fetchRequest = [[NSFetchRequest alloc] init];
[fetchRequest setEntity:entity];
[fetchRequest setIncludesPropertyValues:NO];
[fetchRequest setIncludesSubentities:NO];
NSError *error = ni...