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Set the value of a variable with the result of a command in a Windows batch file
...theValue=`command`
Consider the case where the command fails, causing an error.
In the Unix shell version, the assignment to "theValue" still occurs, any previous value being replaced with an empty value.
In the Windows batch version, it's the "for" command which handles the error, and the "do" ...
How to define two angular apps / modules in one page?
...could reference the unminified version of AngularJS and breakpoint on that error to see the if condition. From what I can make out from your StackOverflow question link, it sounds like you want to dynamically "inject" a module at runtime. If so you might want to take a look at this article: weblogs....
How to detect online/offline event cross-browser?
...ther signals to detect if you are offline including listening for AppCache error events and responses from XMLHttpRequest"
This links to an example of the "listening for AppCache error events" approach:
http://www.html5rocks.com/en/mobile/workingoffthegrid/#toc-appcache
...and an example of the "lis...
Best way to test for a variable's existence in PHP; isset() is clearly broken
...erty is array, for example: Class{ public $property = array() }. Throws an error.
– Andrew
Jun 13 '15 at 9:38
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Android Studio installation on Windows 7 fails, no JDK found
...bin folder, you will find studio.bat. Execute the file, and it'll show the error. If it is about the Java path then follow the tip 1.
Tip 1
When you set the path JAVA_HOME, etc., make sure not to include bin at the end of the path. This solved the issue for me.
JAVA_HOME => C:\Program Files\Ja...
What's a reliable way to make an iOS app crash?
...or exactly this purpose, so it shouldn't generate any compiler warnings or errors.
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How do I show the value of a #define at compile-time?
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As far as I know '#error' only will print strings, in fact you don't even need to use quotes.
Have you tried writing various purposefully incorrect code using "BOOST_VERSION"? Perhaps something like "blah[BOOST_VERSION] = foo;" will tell you ...
Load Testing with AB … fake failed requests (length)
...iable content length mismatches. ab doesn't report HTTP status code 500 as errors in its summary. The reason for the length mismatch might be that you have a real error. You can use -v 4 to get more info (better pipe to a file as there will be a lot of printout).
– Tal Lev-Ami
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MySQL Workbench: How to keep the connection alive
Error Code: 2013. Lost connection to MySQL server during query
9 Answers
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MySQL主从服务器数据一致性的核对与修复 - 数据库(内核) - 清泛网 - 专注C/...
...喜你中招了：
mysql> SHOW SLAVE STATUS\G
Last_Errno: 1062
Last_Error: Error 'Duplicate entry '...' for key ...' on query.
为啥会出现唯一索引键值重复？最大的可能是错误的对从服务器做了写操作！出现此类错误的时候，很多人会用sql_slave_skip_cou...