大约有 48,000 项符合查询结果（耗时：0.0515秒） [XML]
Catch all JavaScript errors and send them to server
...ors and events in the cloud
from http://jslogger.com/features :
From now on you can spy on all the errors that break your site's user experience. Every Javascript error will be caught and brought to you for later debuging.
DISCLAIMER: not affiliated with the service/company.
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MySQL Conditional Insert
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In this, dual is a table with one row only (found originally in Oracle, now in mysql too). The logic is that the SELECT statement generates a single row of data with the required values, but only when the values are not already found.
Alternatively, look at the MERGE statement.
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Django templates: verbose version of a choice
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yes, I know. It's not as general (universal), though - unless you know a way to iterate in a template over all get_FOO_display methods of a model object :) I'm a bit too lazy for writing non-generic templates ;) Moreover, the docs ...
Real-world examples of recursion [closed]
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this real-world example feels so familiar now :(
– haroldolivieri
Jul 29 at 14:40
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How to change menu item text dynamically in Android
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public void setOptionsTitle(String status)
{
bedStatus = status;
}
Now when the menu gets populated, change the title to whatever your status is:
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(bedStatus);
//...
Execute method on startup in Spring
...to execute some methods when the application starts for the first time? I know that I can do the trick of setting a method with @Scheduled annotation and it executes just after the startup, but then it will execute periodically.
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Dealing with “java.lang.OutOfMemoryError: PermGen space” error
...classical example is Java.lang.OutOfMemoryError:PermGen Space in Tomcat.
Now there are two ways to solve this:
1. Find the cause of Memory Leak or if there is any memory leak.
2. Increase size of PermGen Space by using JVM param -XX:MaxPermSize and -XX:PermSize.
You can also check 2 Solution of J...
In what cases will HTTP_REFERER be empty
I know it's possible to get an empty HTTP_REFERER. Under what circumstances does this happen? If I get an empty one, does it always mean that the user changed it? Is getting an empty one the same as getting a null one? and under what circumstances do I get that too?
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Modern way to filter STL container?
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@gsimard Better now?
– L. F.
Apr 6 at 3:05
1
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Is there a way to squash a number of commits non-interactively?
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@wilhelmtell: Great! Now would I be able to construct a git alias, e.g. "mysquash 3 'some message'", to cut this down to one line?
– Phillip
Sep 1 '11 at 19:53
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