大约有 10,000 项符合查询结果（耗时：0.0245秒） [XML]
How to check if IEnumerable is null or empty?
...th an IEnumerable, using Count() to test for emptyness is definitely a bad idea since the Linq implementation WILL iterate over the entire collection, while Any will just move the iterator once. Keep in mind that you can't use the Count property in this case since it's not part of the IEnumerable in...
Loader lock error
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The general idea of loader lock:
The system runs the code in DllMain inside a lock (as in - synchronization lock). Therefore, running non-trivial code inside DllMain is "asking for a deadlock", as described here.
The question is, why ar...
UICollectionView reloadData not functioning properly in iOS 7
... This worked for me, but I'm not sure I understand why it's necessary. Any idea what the issue is?
– Jon Evans
Aug 11 '14 at 22:37
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MySQL: @variable vs. variable. What's the difference?
...xample. This is also a reason, why using DELIMITER @@ is not really a good idea.
– Mchl
Feb 2 '11 at 14:10
14
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“Invalid form control” only in Google Chrome
...gs the error An invalid form control with name='' is not focusable . Any ideas?
13 Answers
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Download data url file
I'm playing with the idea of making a completely JavaScript-based zip/unzip utility that anyone can access from a browser. They can just drag their zip directly into the browser and it'll let them download all the files within. They can also create new zip files by dragging individual files in.
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Recursively counting files in a Linux directory
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I like your idea of using rsync here. I'd never have thought about it!
– Qeole
Aug 3 '16 at 15:55
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PHP how to get local IP of system
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Not really the best idea. It is possible and valid for gethostbyname to return a loopback IP (e.g. 127.0.0.1) for the host machine.
– nobody
May 12 '14 at 20:01
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How can I change the EditText text without triggering the Text Watcher?
...ll setText(...) and after you you re-request the focus. It would be a good idea to put that in a utility function:
void updateText(EditText editText, String text) {
boolean focussed = editText.hasFocus();
if (focussed) {
editText.clearFocus();
}
editText.setText(text);
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How to delete a localStorage item when the browser window/tab is closed?
...emoveItem = null;, making localStorage.removeItem(key); a potentially poor idea.
– skeggse
Feb 23 '16 at 5:09
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