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UICollectionView spacing margins
...or
UICollectionViewFlowLayout *aFlowLayout = [[UICollectionViewFlowLayout alloc] init];
[aFlowLayout setSectionInset:UIEdgeInsetsMake(top, left, bottom, right)];
Updated for Swift 5
func collectionView(_ collectionView: UICollectionView, layout collectionViewLayout: UICollectionViewLayout, inset...
Iterating each character in a string using Python
...thon 2.x, range() creates a list, so for a very long length you may end up allocating a very large block of memory. At the very least use xrange() in those cases. Also, repeated indexing of the same string is much slower than iterating directly over the string. If you need the index, use enumerate()...
Accessing @attribute from SimpleXML
...ode. You can then var_dump the return value of the function.
More info at php.net
http://php.net/simplexmlelement.attributes
Example code from that page:
$xml = simplexml_load_string($string);
foreach($xml->foo[0]->attributes() as $a => $b) {
echo $a,'="',$b,"\"\n";
}
...
Are there strongly-typed collections in Objective-C?
...natomic) T prop;
@end
Use:
FooClass<NSString *> *foo = [[FooClass alloc] init];
NSArray<FooClass<NSString *> *> *fooAry = [NSArray array];
Be careful about those *s.
share
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i...
jQuery or javascript to find memory usage of page
...overwrite jQuery.data method to inform the tracking system about your data allocations.
Wrap html manipulations so that adding or removing content is also tracked (innerHTML.length is the best estimate).
If you keep large in-memory objects they should also be monitored.
As for event binding you s...
Recursion or Iteration?
...ed. I'll dig up some articles and examples for you too.
Link 1: Haskel vs PHP (Recursion vs Iteration)
Here is an example where the programmer had to process a large data set using PHP. He shows how easy it would have been to deal with in Haskel using recursion, but since PHP had no easy way to a...
Why Choose Struct Over Class?
...
Since struct instances are allocated on stack, and class instances are allocated on heap, structs can sometimes be drastically faster.
However, you should always measure it yourself and decide based on your unique use case.
Consider the following exa...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网移动版 - 专注IT技能提升
...set(name="analysis") {
action(type="omprog"
Binary="/usr/bin/php /path/to/script.php"
Template="msg")
stop
}
数据通过管道无缝传递给外部程序，可以说赋予了Rsyslog更多的可能性，你可以使用任何熟悉的语言来实现，以PHP为例，...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网移动版 - 专注IT技能提升
...set(name="analysis") {
action(type="omprog"
Binary="/usr/bin/php /path/to/script.php"
Template="msg")
stop
}
数据通过管道无缝传递给外部程序，可以说赋予了Rsyslog更多的可能性，你可以使用任何熟悉的语言来实现，以PHP为例，...
Linux日志管理Rsyslog入门 - C/C++ - 清泛网移动版 - 专注IT技能提升
...set(name="analysis") {
action(type="omprog"
Binary="/usr/bin/php /path/to/script.php"
Template="msg")
stop
}
数据通过管道无缝传递给外部程序，可以说赋予了Rsyslog更多的可能性，你可以使用任何熟悉的语言来实现，以PHP为例，...