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Checking for the correct number of arguments
How do i check for the correct number of arguments (one argument). If somebody tries to invoke the script without passing in the correct number of arguments, and checking to make sure the command line argument actually exists and is a directory.
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powershell - extract file name and extension
I need to extract file name and extension from e.g. my.file.xlsx. I don't know the name of file or extension and there may be more dots in the name, so I need to search the string from the right and when I find first dot (or last from the left), extract the part on the right side and the part on the...
Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
Is there any difference between :key => "value" (hashrocket) and key: "value" (Ruby 1.9) notations?
5 Answers
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What are the specific differences between .msi and setup.exe file?
I searched a lot, but all are guessed answers. Help me to find the exact answer.
4 Answers
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How to set child process' environment variable in Makefile
I would like to change this Makefile:
4 Answers
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How to show popup message like in Stack Overflow
I would like to add a popup message like the one that appears on Stack Overflow when I am not logged in and I try to use voting buttons.
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Why are `private val` and `private final val` different?
I used to think that private val and private final val are same, until I saw section 4.1 in Scala Reference:
2 Answers
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Difference between jQTouch and jQuery mobile
What is the difference between jQTouch & jQuery Mobile Framework ?
4 Answers
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Why is there an injected class name?
Recently, I saw a strange C++ feature: injected class name .
1 Answer
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What is the entry point of swift code execution?
There is no main() method in swift. The program must start the execution from somewhere. So what is the entry point of swift code execution and how is it decided?
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