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Delete all documents from index/type without deleting type

I know one can delete all documents from a certain type via deleteByQuery. 15 Answers ...
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Most Pythonic way to provide global configuration variables in config.py? [closed]

...a few years old, but I'm a beginner and I think this config file is essentially what I am looking for (maybe too advanced), and I would like to understand it better. Do I just pass initialize ConfigHolder with a dict of configs I'd like to set and pass between modules? – Jinx ...
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How to run a program without an operating system?

How do you run a program all by itself without an operating system running? Can you create assembly programs that the computer can load and run at startup, e.g. boot the computer from a flash drive and it runs the program that is on the CPU? ...
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How do you loop through currently loaded assemblies?

...ughout, but I could not figure out how to effectively show the versions of ALL of the loaded assemblies. 2 Answers ...
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Why do some functions have underscores “__” before and after the function name?

...rms using leading or trailing underscores are recognized (these can generally be combined with any case convention): _single_leading_underscore: weak "internal use" indicator. E.g. from M import * does not import objects whose name starts with an underscore. single_trailing_underscore_: ...
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Why does Python code use len() function instead of a length method?

...on objects which have a length and use the built-in len() function, which calls it for you, similar to the way you would implement __iter__() and use the built-in iter() function (or have the method called behind the scenes for you) on objects which are iterable. See Emulating container types for m...
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Is there a REAL performance difference between INT and VARCHAR primary keys?

... and a coworker won't budge on the INT AUTO_INCREMENT as a primary key for all tables. 14 Answers ...
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In jQuery, how do I get the value of a radio button when they all have the same name?

... @PavanAlapati We cannot really tell you why without seeing your HTML as well; ideally, you would post a new question with your exact HTML snippet and the code you are using. You should only get undefined though, if: The name in the selector does not m...
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How do I find the location of Python module sources?

How do I learn where the source file for a given Python module is installed? Is the method different on Windows than on Linux? ...
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How do you get a list of the names of all files present in a directory in Node.js?

I'm trying to get a list of the names of all the files present in a directory using Node.js. I want output that is an array of filenames. How can I do this? ...