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How to do an INNER JOIN on multiple columns
I'm working on a homework project and I'm supposed to perform a database query which finds flights either by the city name or the airport code, but the flights table only contains the airport codes so if I want to search by city I have to join on the airports table.
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How can I combine hashes in Perl?
What is the best way to combine both hashes into %hash1? I always know that %hash2 and %hash1 always have unique keys. I would also prefer a single line of code if possible.
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How to set the style -webkit-transform dynamically using JavaScript?
I want to change the -webkit-transform: rotate() property using JavaScript dynamically, but the commonly used setAttribute is not working:
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How to convert BigDecimal to Double in Java?
How we convert BigDecimal into Double in java? I have a requirement where we have to use Double as argument but we are getting BigDecimal so i have to convert BigDecimal into Double .
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Getting current unixtimestamp using Moment.js
I want to get the Unix TimeStamp using Moment.js.
I can find many functions which convert timestamp to date in moment.js.
I know that I can easily get the unix timestamp by using the following JavaScript function: Math.floor(new Date().getTime()/1000) .
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val-mutable versus var-immutable in Scala
Are there any guidelines in Scala on when to use val with a mutable collection versus using var with an immutable collection? Or should you really aim for val with an immutable collection?
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Ruby: How to turn a hash into HTTP parameters?
That is pretty easy with a plain hash like
13 Answers
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Choice between vector::resize() and vector::reserve()
I am pre-allocating some memory to my a vector member variable. Below code is minimal part
4 Answers
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Is it possible to use Razor View Engine outside asp.net
If I look at the Razor View Engine, then I see a very nice and concise syntax that is not particularly tied to generating html. So I wonder, how easy would it be to use the engine outside asp.net in a "normal" .net environment for example to generate text, code,...
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How to have Emacs auto-refresh all buffers when files have changed on disk?
I have a non-emacs global search and replace function that causes my disk files to become more up-to-date than my emacs buffers (en masse). Is there any way to tell emacs to refresh all the buffers from disk in one fell swoop, instead of having to do each one individually by reloading the file?
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