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Why are flag enums usually defined with hexadecimal values
A lot of times I see flag enum declarations that use hexadecimal values. For example:
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How to calculate the number of occurrence of a given character in each row of a column of strings?
I have a data.frame in which certain variables contain a text string. I wish to count the number of occurrences of a given character in each individual string.
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How to return a string value from a Bash function
I'd like to return a string from a Bash function.
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Optional Parameters in Go?
Can Go have optional parameters? Or can I just define two functions with the same name and a different number of arguments?
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How do I compare two DateTime objects in PHP 5.2.8?
Having a look on the PHP documentation, the following two methods of the DateTime object would both seem to solve my problem:
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How do I set up IntelliJ IDEA for Android applications?
How do I set up IntelliJ IDEA for Android applications?
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Bash history without line numbers
The bash history command is very cool. I understand why it shows the line numbers, but is there a way I can invoke the history command and suppress the line numbers?
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How to solve the error LNK2019: unresolved external symbol - function?
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How can I select random files from a directory in bash?
I have a directory with about 2000 files. How can I select a random sample of N files through using either a bash script or a list of piped commands?
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Difference between File.separator and slash in paths
What is the difference between using File.separator and a normal / in a Java Path-String?
14 Answers
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