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ruby system command check exit code
I have a bunch of system calls in ruby such as the following and I want to check their exit codes simultaneously so that my script exits out if that command fails.
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Rails check if yield :area is defined in content_for
I want to do a conditional rendering at the layout level based on the actual template has defined content_for(:an__area) , any idea how to get this done?
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How can I get the intersection, union, and subset of arrays in Ruby?
I want to create different methods for a class called Multiset .
3 Answers
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How do I revert master branch to a tag in git?
We have branches origin and develop.
The initial state of master was tagged at tag_ABC .
2 Answers
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Why are there two build.gradle files in an Android Studio project?
After having imported an Eclipse project into Android Studio, I see two build.gradle files:
2 Answers
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Postgresql query between date ranges
I am trying to query my postgresql db to return results where a date is in certain month and year. In other words I would like all the values for a month-year.
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How can I open Windows Explorer to a certain directory from within a WPF app?
In a WPF application, when a user clicks on a button I want to open the Windows explorer to a certain directory, how do I do that?
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Using NSPredicate to filter an NSArray based on NSDictionary keys
I have an array of dictionaries.
6 Answers
6
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How do I unset an element in an array in javascript?
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How can you escape the @ character in javadoc?
How can I escape the @ symbol in javadoc? I am trying to use it inside a {@code} tag, which is inside <pre> tags.
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