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how to “reimport” module to python then code be changed after import
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Note that if you did from foo import * or from foo import bar, the symbol foo doesn't get defined. You need to import sys then reload(sys.modules['foo']) or perhaps reload(sys.modules[bar.__module__])
– drevicko
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htmlentities() vs. htmlspecialchars()
...ometimes you're writing XML data, and you can't use HTML entities in a XML file.
Because htmlentities substitutes more characters than htmlspecialchars. This is unnecessary, makes the PHP script less efficient and the resulting HTML code less readable.
htmlentities is only necessary if your pages ...
服务器保持大量TIME_WAIT和CLOSE_WAIT的解决方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
...限，新的请求就无法被处理了，接着就是大量Too Many Open Files异常，tomcat崩溃。。。
下面来讨论下这两种情况的处理方法，网上有很多资料把这两种情况的处理方法混为一谈，以为优化系统内核参数就可以解决问题，其实是不恰...
How do I move a Git branch out into its own repository?
I have a branch that I'd like to move into a separate Git repository, and ideally keep that branch's history in the process. So far I've been looking at git filter-branch , but I can't make out whether it can do what I want to do.
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TypeScript: Creating an empty typed container array
...option the most readable. In the vast majority of cases the mentioned downsides would be negligible and readability is the most important factor.
*: Fun fact; at the time of writing the performance difference was 60% in Chrome, while in Firefox there was no measurable performance difference.
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Convert an integer to a float number
... var channelOptions = {
tags: "".split(" "),
id: "1"
};
initTagRenderer("".split(" "), "".split(" "), channelOptions);
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JUnit test for System.out.println()
...test( outContent, errContent );
System.setOut(new PrintStream(new FileOutputStream(FileDescriptor.out)));
System.setErr(new PrintStream(new FileOutputStream(FileDescriptor.out)));
}
}
abstract class CaptureTest {
public abstract void test( ByteArrayOutputStream outContent,...
mysql check collation of a table
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The above answer is great, but it doesn't actually provide an example that saves the user from having to look up the syntax:
show table status like 'test';
Where test is the table name.
(Corrected as per comments below.)
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Task continuation on UI thread
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Its valid only if the current execution context is on the UI thread. If you put this code inside another Task, then you get InvalidOperationException (look at Exceptions section)
– stukselbax
J...
What are the uses of “using” in C#?
...ementing IDisposable which hold on to unmanaged resources like streams and file handles will also implement a finalizer that will ensure that Dispose is called during garbage collection. The problem is that GC might not happen for a relatively long time. using makes sure that Dispose is called once ...