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Delete everything in a MongoDB database

...whichever database> db.getCollectionNames().forEach(function(c) { if (c.indexOf("system.") == -1) db[c].drop(); }) This code will go through all collection names from one database and drop those which do not start with "system.". ...
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Sass Variable in CSS calc() function

...me-sector { position: absolute; width: 50%; height: 50%; z-index: 10000; transform-origin: 100% 100%; } $sector_count: 8; $sector_width: 360deg / $sector_count; .sec0 { transform: rotate(0 * $sector_width) skew($sector_width); background-color: red; } .sec1 { tran...
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What are the differences between git branch, fork, fetch, merge, rebase and clone?

...core concepts can be seen at http://marklodato.github.com/visual-git-guide/index-en.html and http://ndpsoftware.com/git-cheatsheet.html#loc=index If you want a visual display of how the changes are working, you can't beat the visual tool gitg (gitx for macOS) with a GUI that I call 'the subway ma...
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How do I properly clean up Excel interop objects?

...rop in C# ( ApplicationClass ) and have placed the following code in my finally clause: 41 Answers ...
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log messages appearing twice with Python Logging

I'm using Python logging, and for some reason, all of my messages are appearing twice. 8 Answers ...
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How/when to use ng-click to call a route?

..., but only if the base path matches /. If you're serving the app from /app/index.html, then this will not work because the absolute URL is /app/next.html. Obviously also, the server must be set to return your index.html file when hit at /next.html. Feel free to post a Plunker/Fiddle if you want me t...
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List goals/targets in GNU make that contain variables in their definition

...utput from make -pn (i.e. make --print-data-base --dry-run)? It prints out all the variables, rules, implicit rules and which commands will be run in laborious detail. share | improve this answer ...
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Why use def main()? [duplicate]

...ink I still have something else to add. Reasons to have that if statement calling main() (in no particular order): Other languages (like C and Java) have a main() function that is called when the program is executed. Using this if, we can make Python behave like them, which feels more familiar for ...
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Does Python support short-circuiting?

...circuiting "executed" not printed 1 >>> 1 and fun(1) # fun(1) called and "executed" printed executed 1 >>> 0 and fun(1) # due to short-circuiting "executed" not printed 0 Note: The following values are considered by the interpreter to mean false: False None ...
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How to get month name from Calendar

...work but I would like to get the string repr. of the month when I know the index of it. I think I will use the other approaches, thanks. – ogzd Feb 12 '13 at 12:15 47 ...