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Replacing all non-alphanumeric characters with empty strings
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He's probably used to programming in PHP.
– William
Nov 26 '09 at 20:31
10
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How to escape a JSON string to have it in a URL?
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Using encodeURIComponent():
var url = 'index.php?data='+encodeURIComponent(JSON.stringify({"json":[{"j":"son"}]})),
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What happens if i return before the end of using statement? Will the dispose be called?
...called. It's called as soon as the execution leaves the scope of the using block, regardless of what means it took to leave the block, be it the end of execution of the block, a return statement, or an exception.
As @Noldorin correctly points out, using a using block in code gets compiled into tr...
How do I know that the UICollectionView has been loaded completely?
... it's datasource methods again... the performBatchUpdates has a completion block attached so if both are performed on the main thread you know any code that put in place of /// collection-view finished reload will execute with a fresh and laid out collectionView
– Magoo
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How to send an email from JavaScript
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if (rq) {
// Success; attempt to use an Ajax request to a PHP script to send the e-mail
try {
rq.open('GET', 'sendmail.php?to=' + encodeURIComponent(to) + '&subject=' + encodeURIComponent(subject) + '&d=' + new Date().getTime().toString(), true);
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If i synchronized two methods on the same class, can they run simultaneously?
...hem on the same object from different threads (one of the two methods will block until the other is finished).
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What is the difference between buffer and cache memory in Linux?
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"Buffers" represent how much portion of RAM is dedicated to cache disk blocks. "Cached" is similar like "Buffers", only this time it caches pages from file reading.
quote from:
https://web.archive.org/web/20110207101856/http://www.linuxforums.org/articles/using-top-more-efficiently_89.html
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how to show alternate image if source image is not found? (onerror working in IE but not in mozilla)
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If you're open to a PHP solution:
<td><img src='<?PHP
$path1 = "path/to/your/image.jpg";
$path2 = "alternate/path/to/another/image.jpg";
echo file_exists($path1) ? $path1 : $path2;
?>' alt='' />
</td>
////EDI...
Where to put the doxygen comment blocks for an internal library - in H or in CPP files? [closed]
The common sense tells that the Doxygen comment blocks have to be put in the header files where the classes, structs, enums, functions, declarations are. I agree that this is a sound argument for a libraries that are mean to be distributed without its source (only headers and libs with object code)....
Check whether or not the current thread is the main thread
...e executed on the main thread, you can:
- (void)someMethod
{
dispatch_block_t block = ^{
// Code for the method goes here
};
if ([NSThread isMainThread])
{
block();
}
else
{
dispatch_async(dispatch_get_main_queue(), block);
}
}
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