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How to remove a field completely from a MongoDB document?

Suppose this is a document. How do I remove " words " completely from all the documents in this collection? I want all documents to be without " words ": ...
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Sorting a vector in descending order

... 11 Answers 11 Active ...
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How to loop through an array containing objects and access their properties

I want to cycle through the objects contained in an array and change the properties of each one. If I do this: 15 Answers ...
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How to retrieve a module's path?

I want to detect whether module has changed. Now, using inotify is simple, you just need to know the directory you want to get notifications from. ...
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Good PHP ORM Library?

Is there a good object-relational-mapping library for PHP? 36 Answers 36 ...
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What's the algorithm to calculate aspect ratio?

I plan to use it with JavaScript to crop an image to fit the entire window. 18 Answers ...
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Remove duplicates from a List in C#

Anyone have a quick method for de-duplicating a generic List in C#? 27 Answers 27 ...
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Diff Algorithm? [closed]

I've been looking like crazy for an explanation of a diff algorithm that works and is efficient. 5 Answers ...
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How to loop through file names returned by find?

if I run the above piece of code in Bash shell, what I get is a string containing several file names separated by blank, not a list. ...
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How to do ToString for a possibly null object?

Is there a simple way of doing the following: 12 Answers 12 ...