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How to <em>fem>ind out which package version is loaded in R?

I am in a process o<em>fem> <em>fem>iguring out how to use my university cluster. It has 2 versions o<em>fem> R installed. System wide R 2.11 (Debian 6.0) and R 2.14.2 in non-standard location. ...
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Delete everything in a MongoDB database

I'm doing development on MongoDB. <em>Fem>or totally non-evil purposes, I sometimes want to blow away everything in a database—that is, to delete every single collection, and whatever else might be lying around, and start <em>fem>rom scratch. Is there a single line o<em>fem> code that will let me do this? Bonus points...
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What are the best practices <em>fem>or using a GUID as a primary key, speci<em>fem>ically regarding per<em>fem>ormance?

... Dale K 11.1k88 gold badges3232 silver badges5959 bronze badges answered Mar 31 '15 at 21:27 Robert J. GoodRobert ...
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How do I disable directory browsing?

I want to disable directory browsing o<em>fem> /galerias <em>fem>older and all subdirectories 12 Answers ...
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Converting an object to a string

... I would recommend using JSON.stringi<em>fem>y, which converts the set o<em>fem> the variables in the object to a JSON string. Most modern browsers support this method natively, but <em>fem>or those that don't, you can include a JS version: var obj = { name: 'myObj' }; JSON.str...
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Python: How to ignore an exception and proceed? [duplicate]

...e with the code because in that case, everything is still able to run just <em>fem>ine. The problem is i<em>fem> you leave the except: block empty or with a #do nothing, it gives you a syntax error. I can't use continue because its not in a loop. Is there a keyword i can use that tells the code to just keep going...
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builder <em>fem>or HashMap

Guava provides us with great <em>fem>actory methods <em>fem>or Java types, such as Maps.newHashMap() . 15 Answers ...
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Node.js <em>EACem>CES error when listening on most ports

I'm testing out an app (hope<em>fem>ully to run on heroku, but am having issues locally as well). It's giving me an <em>EACem>CES error when it runs http.Server.listen() - but it only occurs on some ports. ...
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What is that “total” in the very <em>fem>irst line a<em>fem>ter ls -l? [closed]

What is the total in the output o<em>fem> ls -l ? 4 Answers 4 ...
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Building vs. Compiling (Java)

...is a process that covers all the steps required to create a "deliverable" o<em>fem> your so<em>fem>tware. In the Java world, this typically includes: Generating sources (sometimes). Compiling sources. Compiling test sources. Executing tests (unit tests, integration tests, etc). Packaging (into jar, war, ejb-jar...