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Trigger change event using jquery
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$('#edit_user_details').find('select').trigger('change');
It would change the select html tag drop-down item with id="edit_user_details".
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Ruby on Rails Callback, what is difference between :before_save and :before_create?
Could you explain in detail what the :before_save and :before_create Ruby on Rails callbacks are, and what they have to do with Rails validations? Does validation occur after :before_save or :before_create ?
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Why does Azure deployment take so long?
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Check out this PDC10 video by Mark Russinovich. He goes into great detail on what's going on inside Azure with some insights into the (admittedly slow) deployment process.
Original link is no longer working. Here's another link to a version of the same presentation: https://channel9.msdn.co...
What makes JNI calls slow?
...ters for each JNI call and the code is not optimized.
There are many more details outlined in this paper
If you are interested in benchmarking JNI vs native code this project has code for running benchmarks.
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How does bash tab completion work?
...ry quite much, see the section Command line editing of the Bash manual for details.)
Bash itself has the built-in complete to define a completion mechanism for individual commands. If for the current command nothing is defined, it used completion by file name (using opendir/readdir, as Ignacio said)...
Adaptive segue in storyboard Xcode 6. Is push deprecated?
...the explanation given for each new segue:
Show
Present the content in the detail or master area depending on the content of the screen. If the app is displaying a master and detail view, the content is pushed onto the detail area. If the app is only displaying the master or the detail, the content ...
How to get memory available or used in C#
...es of physical memory mapped to the process context.
If you want a lot of details there is System.Diagnostics.PerformanceCounter, but it will be a bit more effort to setup.
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Manifest merger failed : uses-sdk:minSdkVersion 14
...your Manifest to avoid the merge conflict gradle throws. See this link for details: reddit.com/r/androiddev/comments/297xli/…
– Michel
Jun 28 '14 at 21:50
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What is the use of interface constants?
...terfaces. That a class uses some constants internally is an implementation detail. Implementing a constant interface causes this implementation detail to leak into the class's exported API. It is of no consequence to the users of a class that the class implements a constant interface. In fact, it ma...
How to generate gcc debug symbol outside the build target?
... -e main
or
gdb
(gdb) exec-file main
(gdb) symbol-file main.debug
For details:
(gdb) help exec-file
(gdb) help symbol-file
Ref:
https://sourceware.org/gdb/onlinedocs/gdb/Files.html#Files
https://sourceware.org/gdb/onlinedocs/gdb/Separate-Debug-Files.html
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