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What's the difference between using INDEX vs KEY in MySQL?
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There's no difference. They are synonyms.
From the CREATE TABLE manual entry:
KEY is norm...
How do I prompt for Yes/No/Cancel input in a Linux shell script?
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Swift: Convert enum value to String?
...t sure in which Swift version this feature was added, but right now (Swift 2.1) you only need this code:
enum Audience : String {
case public
case friends
case private
}
let audience = Audience.public.rawValue // "public"
When strings are used for raw values, the implicit value fo...
If threads share the same PID, how can they be identified?
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The four threads will have the same PID but only when viewed from above. What you (as a user) ...
String literals: Where do they go?
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A common technique is for string literals to be put in "read-only-data" section which gets mapp...
SVG Positioning
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Everything in the g element is positioned relative to the current transform matrix.
To move t...
Get Mouse Position
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MouseInfo.getPointerInfo().getLocation() might be helpful. It returns a Point object correspon...
For every character in string
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Looping through the characters of a std::string, using a range-based for loop (it's from C++11...
Update just one gem with bundler
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Here you can find a good explanation on the difference between
Update both gem and dependencies...