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Ruby: Easiest Way to Filter Hash Keys?
I have a hash that looks something like this:
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How to use hex color values
I am trying to use hex color values in Swift, instead of the few standard ones that UIColor allows you to use, but I have no idea how to do it.
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PHP abstract properties
Is there any way to define abstract class properties in PHP?
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Seeding the random number generator in Javascript
Is it possible to seed the random number generator (Math.random) in Javascript?
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How to use sidebar with the keyboard in Sublime Text 2 and 3?
When using Sublime Text 2 we tend to open the side bar to navigate thru files/folders in our projects. For that we can use the hotkey ctrl+k ctrl+b (in windows).
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Conditionally Remove Dataframe Rows with R [duplicate]
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What is the combinatory logic equivalent of intuitionistic type theory?
I recently completed a university course which featured Haskell and Agda (a dependent typed functional programming language), and was wondering if it was possible to replace lambda calculus in these with combinatory logic. With Haskell this seems possible using the S and K combinators, thus making i...
How to determine whether a Pandas Column contains a particular value
I am trying to determine whether there is an entry in a Pandas column that has a particular value. I tried to do this with if x in df['id'] . I thought this was working, except when I fed it a value that I knew was not in the column 43 in df['id'] it still returned True . When I subset to a data...
Is Java's assertEquals method reliable?
I know that == has some issues when comparing two Strings . It seems that String.equals() is a better approach. Well, I'm doing JUnit testing and my inclination is to use assertEquals(str1, str2) . Is this a reliable way to assert two Strings contain the same content? I would use assertTr...
CSS Child vs Descendant selectors
I am a bit confused between these 2 selectors.
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