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How to filter None's out of List[Option]?

...ar to someList.flatten.map, as one often wants to work with these elements and not just flatten the list out of fun. – Frank Apr 11 '12 at 11:38 ...
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Postgresql query between date ranges

... query my postgresql db to return results where a date is in certain month and year. In other words I would like all the values for a month-year. ...
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How do I accomplish an if/else in mustache.js?

...e are the only checks, i.e. you can't check if the value of a tag equals 5 and then fall into that tag's code. – MandM Nov 13 '15 at 19:21 23 ...
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How to detect modifier key states in WPF?

...lution. It also allows you to check all modifiers at once. If you want to handle Ctrl+F, you won't want to handle Ctrl+Shift+F, so you could just check for (e.Key == Key.F && e.KeyboardDevice.Modifiers == ModifierKeys.Control) instead of all the other stuff... – ygoe ...
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What is the difference between Directory.EnumerateFiles vs Directory.GetFiles?

... From the docs: The EnumerateFiles and GetFiles methods differ as follows: When you use EnumerateFiles, you can start enumerating the collection of names before the whole collection is returned; when you use GetFiles, you must wait for the whole array of names...
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django - query filter on manytomany is empty

... And the inverse is possible with TestModel.objects.exclude(manytomany=None) – Alex L Oct 2 '13 at 9:30 ...
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Calling static generic methods

...nt of type Class<E> (so it would be createFoo(Class<E> type)), and call it with createFoo(String.class) – Gavin S. Yancey Apr 16 '15 at 2:24 ...
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Target elements with multiple classes, within one rule

I have some HTML that would have elements with multiple classes, and I need to assign them within one rule, so that the same classes could be different within different containers. Say I have this in my CSS: ...
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bash HISTSIZE vs. HISTFILESIZE?

... Short answer: HISTSIZE is the number of lines or commands that are stored in memory in a history list while your bash session is ongoing. HISTFILESIZE is the number of lines or commands that (a) are allowed in the history file at startup time of a session, and (b) are stored i...
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Markdown vs markup - are they related?

...ark-up is a term from print editing - the editor would go through the text and add annotations (i.e. this in italic, that in bold) for the printers to use when producing the final version. This was called marking up the text. A computer mark-up language is just a standardised short-hand for these s...