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How can I check if a program exists from a Bash script?
How would I validate that a program exists, in a way that will either return an error and exit, or continue with the script?
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Static Indexers?
Why are static indexers disallowed in C#? I see no reason why they should not be allowed and furthermore they could be very useful.
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Is int[] a reference type or a value type?
I know an int is a value type, but what are arrays of value types? Reference types? Value types? I want to pass an array to a function to check something. Should I just pass the array, as it will just pass the reference of it, or should I pass it as ref?
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What is a clean, pythonic way to have multiple constructors in Python?
I can't find a definitive answer for this. As far as I know, you can't have multiple __init__ functions in a Python class. So how do I solve this problem?
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How do I create directory if none exists using File class in Ruby?
...ry?(dirname)
FileUtils.mkdir_p(dirname)
end
Edit: Here is a solution using the core libraries only (reimplementing the wheel, not recommended)
dirname = File.dirname(some_path)
tokens = dirname.split(/[\/\\]/) # don't forget the backslash for Windows! And to escape both "\" and "/"
1.upto(toke...
Removing an element from an Array (Java) [duplicate]
Is there any fast (and nice looking) way to remove an element from an array in Java?
15 Answers
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How to override the properties of a CSS class using another CSS class
I am fairly new to CSS3 and I want to be able to do the following:
6 Answers
6
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Git: How to squash all commits on branch
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Another way to squash all your commits is to reset the index to master:
git checkout yourBranch
git reset $(git merge-base master yourBranch)
git add -A
git commit -m "one commit on yourBranch"
This isn't perfect as it implies you know from which branch "yourBranch" is com...
How to get JQuery.trigger('click'); to initiate a mouse click
I'm having a hard time understand how to simulate a mouse click using JQuery. Can someone please inform me as to what i'm doing wrong.
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Validating email addresses using jQuery and regex
I'm not too sure how to do this. I need to validate email addresses using regex with something like this:
10 Answers
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