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Understanding scala enumerations

I have to say I don't understand Scala enumeration classes. I can copy-paste the example from documentation, but I have no idea what is going on. ...
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HTML5 Email Validation

...your email"> <input type="submit" value="Submit"> </form> And when the user press submit, it automatically shows an error message like: share | improve this answer | ...
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Set operations (union, intersection) on Swift array?

Are there any standard library calls I can use to either perform set operations on two arrays, or implement such logic myself (ideally as functionally and also efficiently as possible)? ...
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Build android release apk on Phonegap 3.x CLI

How can I build an android app locally using the Phonegap 3.x CLI, ready to release? I check the bin folder generated inside the platforms/android directory of the project, and only has .debug APKs. ...
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When should Flask.g be used?

...ting DB connections are tasks which setup the environment for the request, and should not be handled inside before_request and after_request) share | improve this answer | f...
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How to get first character of string?

I have a string, and I need to get its first character. 16 Answers 16 ...
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Format decimal for percentage values?

... Looking at here big difference is like US and France type. If above varies by culture, is there a culture-independent P formatting? – bonCodigo May 18 '14 at 1:36 ...
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How do I declare a 2d array in C++ using new?

... rowCount; ++i) a[i] = new int[colCount]; The above, for colCount= 5 and rowCount = 4, would produce the following: share | improve this answer | follow ...
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ToList()— does it create a new list?

...en the new list would contain copies of the elements in the original list, and updating a property of an element in the new list would not affect the equivalent element in the original list.) share | ...
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How do you run a command for each line of a file?

... Read a file line by line and execute commands: 4 answers This is because there is not only 1 answer... shell command line expansion xargs dedicated tool while read with some remarks while read -u using dedicated fd, for interactive processing (sam...