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How to exit if a command failed?
...&.
cmd1 && cmd2
will run cmd2 when cmd1 succeeds(exit value 0). Where as
cmd1 || cmd2
will run cmd2 when cmd1 fails(exit value non-zero).
Using ( ) makes the command inside them run in a sub-shell and calling a exit from there causes you to exit the sub-shell and not your original...
How do I “source” something in my .vimrc file?
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Anthony Geoghegan
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answered Apr 30 '09 at 3:25
WhaledawgWhaledawg
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Convert Time from one time zone to another in Rails
...pment environment (Rails 2.3.2)
>> now = DateTime.now.utc
=> Sun, 06 Sep 2009 22:27:45 +0000
>> now.in_time_zone('Eastern Time (US & Canada)')
=> Sun, 06 Sep 2009 18:27:45 EDT -04:00
>> quit
So for your particular example
Annotation.last.created_at.in_time_zone('Easter...
Which characters are valid/invalid in a JSON key name?
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edited Dec 30 '11 at 4:03
answered Dec 30 '11 at 3:59
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How to accept Date params in a GET request to Spring MVC Controller?
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answered Mar 1 '13 at 19:03
LittleLebowskiLittleLebowski
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What does __FILE__ mean in Ruby?
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answered Oct 22 '08 at 3:30
GeoffGeoff
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Deploying my application at the root in Tomcat
...ed to deploy this at the root level. The current URL is http://localhost:8080/war_name/application_name .
10 Answers
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How can I detect if this dictionary key exists in C#?
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edited May 13 '10 at 20:38
Adam Tuttle
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PHP function to build query string from array
... Ry-♦
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answered Dec 30 '08 at 16:52
TJ LTJ L
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How can I tell PyCharm what type a parameter is expected to be?
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If you are using Python 3.0 or later, you can also use annotations on functions and parameters. PyCharm will interpret these as the type the arguments or return values are expected to have:
class King:
def repress(self, peasant: Person) -> boo...