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How to copy a collection from one database to another in MongoDB
Is there a simple way to do this?
19 Answers
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Finding Variable Type in JavaScript
In Java, you can use instanceOf or getClass() on a variable to find out its type.
9 Answers
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How can I use an http proxy with node.js http.Client?
I want to make an outgoing HTTP call from node.js, using the standard http.Client . But I cannot reach the remote server directly from my network and need to go through a proxy.
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Does :before not work on img elements?
I'm trying to use the :before selector to place an image over another image, but I'm finding that it simply doesn't work to place an image before an img element, only some other element. Specifically, my styles are:
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How to find the operating system version using JavaScript?
How can I find the OS name and OS version using JavaScript?
13 Answers
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How to detect duplicate values in PHP array?
I am working with a one dimensional array in PHP. I would like to detect the presence of duplicate values, then count the number of duplicate values and out put the results. For example, given the following array:
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Objective-C : BOOL vs bool
I saw the "new type" BOOL ( YES , NO ).
10 Answers
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How best to determine if an argument is not sent to the JavaScript function
I have now seen 2 methods for determining if an argument has been passed to a JavaScript function. I'm wondering if one method is better than the other or if one is just bad to use?
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Why are Python lambdas useful? [closed]
I'm trying to figure out Python lambdas. Is lambda one of those "interesting" language items that in real life should be forgotten?
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How can “while (i == i) ;” be a non-infinite loop in a single threaded application?
I just got a question that I can't answer.
12 Answers
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