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How to model type-safe enum types?

Scala doesn't have type-safe enum s like Java has. Given a set of related constants, what would be the best way in Scala to represent those constants? ...
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How can I check if an argument is defined when starting/calling a batch file?

... "%~1"=="" handles spaces in the variable while the [] version does not. – Cookie Butter Apr 14 '15 at 11:00 add a comment  |  ...
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jquery UI dialog: how to initialize without a title bar?

... +1 Jonatan's solution doesn't work for particular dialog. Your's does. – cetnar Sep 8 '10 at 10:11 1 ...
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Difference between == and ===

...l equality with == it means if their instances are equal to each other. It doesn't need to be same instance to be equal. For this you need to provide a equality criteria to your custom class. By default, custom classes and structures do not receive a default implementation of the equivalence operato...
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How to debug Google Apps Script (aka where does Logger.log log to?)

In Google Sheets, you can add some scripting functionality. I'm adding something for the onEdit event, but I can't tell if it's working. As far as I can tell, you can't debug a live event from Google Sheets, so you have to do it from the debugger, which is pointless since the event argument passed...
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What's quicker and better to determine if an array key exists in PHP?

...e for array keys that correspond to a null value, while array_key_exists() does. Running a small benchmark shows that isset() it's faster but it may not be entirely accurate. share | improve this a...
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UIImage: Resize, then Crop

... Makes NO SENSE as to why this fixes image orientation, but it does and thus it fixed my problem with the camera not returning the right orientation in the originalImage. Thanks. – Brenden Aug 13 '09 at 21:48 ...
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TypeScript Objects as Dictionary types as in C#

... to make sure that the compiler restricts indexes to strings. Interesting. Doesn't look like you can specify the index type to be anything other than strings or integers, but that makes sense, since it just maps to the native JS object indexes. – Ken Smith Nov ...
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What is the best way to check for Internet connectivity using .NET?

...d to pings. On the other hand, I cannot image a world where www.google.com does not return some HTML :) – Daniel Vassallo Jan 9 '10 at 1:01 3 ...
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How to convert a unix timestamp (seconds since epoch) to Ruby DateTime?

... This doesn't handle fractional seconds – Dan Sandberg Dec 11 '13 at 22:24 49 ...