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When should I use a List vs a LinkedList
When is it better to use a List vs a LinkedList ?
15 Answers
15
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Manually raising (throwing) an exception in Python
How can I raise an exception in Python so that it can later be caught via an except block?
8 Answers
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PHP validation/regex for URL
I've been looking for a simple regex for URLs, does anybody have one handy that works well? I didn't find one with the zend framework validation classes and have seen several implementations.
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Dump a mysql database to a plaintext (CSV) backup from the command line
...ly convenient for mysql to read. CSV seems more universal (one file per table is fine). But if there are advantages to mysqldump, I'm all ears. Also, I'd like something I can run from the command line (linux). If that's a mysql script, pointers to how to make such a thing would be helpful.
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Best way to iterate through a Perl array
Which is the best implementation(in terms of speed and memory usage) for iterating through a Perl array? Is there any better way? ( @Array need not be retained).
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What is a good regular expression to match a URL? [duplicate]
Currently I have an input box which will detect the URL and parse the data.
6 Answers
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The difference between bracket [ ] and double bracket [[ ]] for accessing the elements of a list or
...http://cran.r-project.org/doc/manuals/R-lang.html#Indexing
R has three basic indexing operators, with syntax displayed by the following examples
x[i]
x[i, j]
x[[i]]
x[[i, j]]
x$a
x$"a"
For vectors and matrices the [[ forms are rarely used, although they have some slig...
Comparing strings by their alphabetical order
I want to compare the two above string by their alphabetic order (which in this case "Project" then "Sunject" as "P" comes before "S").
Does anyone know how to do that in Java?
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What is the difference between Scala's case class and class?
I searched in Google to find the differences between a case class and a class . Everyone mentions that when you want to do pattern matching on the class, use case class. Otherwise use classes and also mentioning some extra perks like equals and hash code overriding. But are these the only reasons...
React JSX: selecting “selected” on selected option
...t component for a <select> menu, I need to set the selected attribute on the option that reflects the application state.
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