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Dictionary returning a default value if the key does not exist [duplicate]

...ally will just return default(TValue), not some custom default value (nor, more usefully, the result of executing a delegate). There's nothing more powerful built into the framework. I would suggest two extension methods: public static TValue GetValueOrDefault<TKey, TValue> (this IDiction...
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PHP array_filter with arguments

...r($matches); As a sidenote, you can now replace LowerThanFilter with a more generic NumericComparisonFilter with methods like isLower, isGreater, isEqual etc. Just a thought — and a demo... share | ...
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Making macOS Installer Packages which are Developer ID ready

...nds to use <domains enable_anywhere ... /> but this triggers the new more buggy Destination Select Pane which Apple doesn't use in any of their Packages. Using the deprecate <options rootVolumeOnly="true" /> give you the old Destination Select Pane. You want to install items into th...
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Create a tag in a GitHub repository

...o my answer to How do you push a tag to a remote repository using Git? for more details about that syntax above. Creating tags through GitHub's web interface You can find GitHub's instructions for this at their Creating Releases help page. Here is a summary: Click the releases link on our reposi...
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How to get the difference between two arrays of objects in JavaScript

...o lists by applying the predicate appropriately. (Extra points if it were more efficient than having to run through all m * n comparisons twice!) – Scott Sauyet Feb 24 '14 at 12:55 ...
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Git - working on wrong branch - how to copy changes to existing topic branch

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MySQL high CPU usage [closed]

... probably want to turn off persistent connections as they almost always do more harm than good. Secondly I'd say you want to double check your MySQL users, just to make sure it's not possible for anyone to be connecting from a remote server. This is also a major security thing to check. Thirdly I'...
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How can I parse a YAML file in Python

... to install the PyYAML package first pip install pyyaml, see this post for more options stackoverflow.com/questions/14261614/… – Romain Sep 26 '18 at 9:03 7 ...
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Initializing a list to a known number of elements in Python [duplicate]

...business goals, maintainance cost, engineering time to write it, are often more important. – user26294 Feb 6 '09 at 21:07 95 ...
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Copy constructor versus Clone()

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