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How to check for file lock? [duplicate]
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No, unfortunately, and if you think about it, that information would be worthless anyway since the file could become locked the very next second (read: short timespan).
Why specifically do you need to know if the file is locked anyway? Knowing that might give us some other way of gi...
Does Python support multithreading? Can it speed up execution time?
...s threaded Python code is locked to one thread executing at a time. If you mix in C extensions and I/O, however (such as PIL or numpy operations) and any C code can run in parallel with one active Python thread.
Python threading is great for creating a responsive GUI, or for handling multiple short...
How do I create delegates in Objective-C?
...his:
@interface MyClass<UIWebViewDelegate>
// ...
@end
@implementation MyClass
- (void)webViewDidStartLoad:(UIWebView *)webView {
// ...
}
@end
Then you could create an instance of MyClass and assign it as the web view's delegate:
MyClass *instanceOfMyClass = [[MyClass alloc] init];...
XPath to select multiple tags
...irrelevant of namespace; if anyone did this against a document which I was mixing in differently-namespaced content (presumably intended to be read by a different toolchain), I would consider their behavior very inappropriate. That said, the argument is -- as you suggest -- a bit unbecoming.
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When serving JavaScript files, is it better to use the application/javascript or application/x-javas
...ing to what the specs are saying, but rather what works the best given the mix of browsers deployed nowadays.
6 Answers
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Swift native base class or NSObject
... is a super-class (directly or further up), or by using the '@objc' decoration. Otherwise it will follow a static- and vtable-dispatch style, like C++.
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Do DOM tree elements with ids become global variables?
..., for example:
document.getElementById('example').innerHTML
IE likes to mix elements with name and ID attributes in the global namespace, so best to be explicit about what you're trying to get.
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Omitting all xsi and xsd namespaces when serializing an object in .NET?
...nts, whether you want it or not, because they're necessary for deserialization
– Thomas Levesque
Aug 25 '09 at 8:27
3
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不同品牌的防火墙组成高可靠性集群 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...用协议。
Zebra 最为实用的一点是它的配置形式同 Cisco IOS 极其类似。尽管它的配置与 IOS 相比还是有一些不同，但是这对于那些已经熟悉 IOS 的网络工程师来说在这种环境下工作将相当自如。
安装安装
1、下载下载
ftp://ft...
Bundle ID Suffix? What is it?
I'm new to the iPhone submission process. Apple asks for the Bundle ID Suffix. What is this? Not sure what to put here and what the significance of it is.
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