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Trouble comparing time with RSpec
I am using Ruby on Rails 4 and the rspec-rails gem 2.14. For a my object I would like to compare the current time with the updated_at object attribute after a controller action run, but I am in trouble since the spec does not pass. That is, given the following is the spec code:
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Subtract two variables in Bash
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You just need a little extra whitespace around the minus sign, and backticks:
COUNT=`expr $FIRSTV - $SECONDV`
Be aware of the exit status:
The exit status is 0 if EXPRESSION is neither null nor 0, 1 if EXPRESSION is null or 0.
Keep this in mind when using the expression in a bash sc...
When to use references vs. pointers
I understand the syntax and general semantics of pointers versus references, but how should I decide when it is more-or-less appropriate to use references or pointers in an API?
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What Automatic Resource Management alternatives exist for Scala?
...tending the design pattern - taking inspiration from python with statement and addressing:
statements to run before the block
re-throwing exception depending on the managed resource
handling two resources with one single using statement
resource-specific handling by providing an implicit conversi...
How can I have lowercase routes in ASP.NET MVC?
...that I would have /dinners/details/2 call DinnersController.Details(2) and, if possible, /dinners/more_details/2 call DinnersController.MoreDetails(2) ?
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Find indices of elements equal to zero in a NumPy array
...ray, so the output is a 1-tuple. If x was a matrix, it would be a 2-tuple, and so on
– Ciprian Tomoiagă
May 26 '17 at 15:23
1
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How to programmatically close a JFrame
...tem.exit(...) will do exactly what you want in a very abrupt, brute-force, and possibly problematic fashion.
If by Alt-F4 or X you mean hide the window, then frame.setVisible(false) is how you "close" the window. The window will continue to consume resources/memory but can be made visible again ver...
Spring mvc @PathVariable
Can you give me a brief explanation and a sample in using @PathVariable in spring mvc? Please include on how you type the url?
I'm struggling in getting the right url to show the jsp page. Thanks.
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How to get an object's property's value by property name?
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Sure
write-host ($obj | Select -ExpandProperty "SomeProp")
Or for that matter:
$obj."SomeProp"
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How to log cron jobs?
...og/myjob.log
You might use mail to send emails. Most systems will send unhandled cron job output by email to root or the corresponding user.
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