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How to create a hex dump of file containing only the hex characters without spaces in bash?
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254
xxd -p file
Or if you want it all on a single line:
xxd -p file | tr -d '\n'
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How do you delete an ActiveRecord object?
... like
user.destroy
User.find(15).destroy
User.destroy(15)
User.where(age: 20).destroy_all
User.destroy_all(age: 20)
Alternatively you can use delete and delete_all which won't enforce :before_destroy and :after_destroy callbacks or any dependent association options.
User.delete_all(condition:...
How to determine function name from inside a function
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238
You can use ${FUNCNAME[0]} in bash to get the function name.
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Determine if $.ajax error is a timeout
... }
}
});
With jsFiddle, you can test ajax calls -- it will wait 2 seconds before responding. I put the timeout setting at 1 second, so it should error out and pass back a textstatus of 'timeout' to the error handler.
Hope this helps!
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npm: disable postinstall script for package
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273
It's not possible to disable only postinstall scripts. However, you can disable all scripts us...
How to use RSpec's should_raise with any kind of exception?
....should raise_error
See the documentation (for RSpec 1 syntax) and RSpec 2 documentation for more.
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How do I enable C++11 in gcc?
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H2CO3 is right, you can use a makefile with the CXXFLAGS set with -std=c++11
A makefile is a simple text file with instructions about how to compile your program. Create a new file named Makefile (with a capital M). To automat...
Any equivalent to .= for adding to beginning of string in PHP?
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answered Aug 18 '11 at 17:52
Eric VEric V
1,78611 gold badge1111 silver badges55 bronze badges
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Notepad++: How to automatically set Language as Xml when load files
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answered Feb 2 '12 at 20:45
ErikestErikest
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