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Purge or recreate a Ruby on Rails database
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Or, rather, it leaves the schema identical to what running all the migrations would have. But the migrations aren't run per se (so if you have migrations which insert data, that won't happen; for this, you should really use a...
Is an index needed for a primary key in SQLite?
...s a primary key in an SQLite table, should an index be explicitly created for it as well? SQLite does not appear to automatically create an index for a primary key column, but perhaps it indexes it anyway, given its purpose? (I will be searching on that column all the time).
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When to use an interface instead of an abstract class and vice versa?
... answered Jan 26 '09 at 9:01
Jorge CórdobaJorge Córdoba
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Invalid argument supplied for foreach()
It often happens to me to handle data that can be either an array or a null variable and to feed some foreach with these data.
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How can I check if a URL exists via PHP?
... edited Sep 21 at 16:58
Theodore R. Smith
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answered Feb 17 '10 at 12:10
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In Python, when to use a Dictionary, List or Set?
When should I use a dictionary, list or set?
11 Answers
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Can unit testing be successfully added into an existing production project? If so, how and is it wor
...an existing project that is in production. It was started 18 months ago before I could really see any benefit of TDD (face palm) , so now it's a rather large solution with a number of projects and I haven't the foggiest idea where to start in adding unit tests. What's making me consider this is tha...
Search for executable files using find command
...ons of find you can use -executable:
find . -type f -executable -print
For BSD versions of find, you can use -perm with + and an octal mask:
find . -type f -perm +111 -print
In this context "+" means "any of these bits are set" and 111 is the execute bits.
Note that this is not identical to t...
What is the correct way to check for string equality in JavaScript?
What is the correct way to check for equality between Strings in JavaScript?
9 Answers
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Could not load file or assembly 'System.Net.Http.Formatting' or one of its dependencies. The system
I have a small MVC app that I use for practice reasons, but now I am encountering an error every time I try to debug:
18 An...