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Cloning an Object in Node.js

What is the best way to clone an object in node.js 21 Answers 21 ...
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How to convert Set to String[]?

I need to get a String[] out of a Set<String> , but I don't know how to do it. The following fails: 7 Answers ...
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Grouping functions (tapply, by, aggregate) and the *apply family

Whenever I want to do something "map"py in R, I usually try to use a function in the apply family. 10 Answers ...
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MySQL check if a table exists without throwing an exception

What is the best way to check if a table exists in MySQL (preferably via PDO in PHP) without throwing an exception. I do not feel like parsing the results of "SHOW TABLES LIKE" et cetera. There must be some sort of boolean query? ...
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gradle build fails on lint task

I have a simple android project that I created with Android Studio 0.4.0. I use Gradle 1.9 and Gradle Android Plugin 0.7. Yesterday I've added Jake Wharton's ButterKnife library in my gradle build script: ...
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Regex for numbers only

I haven't used regular expressions at all, so I'm having difficulty troubleshooting. I want the regex to match only when the contained string is all numbers; but with the two examples below it is matching a string that contains all numbers plus an equals sign like "1234=4321". I'm sure there's a way...
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How to replace all occurrences of a character in string?

What is the effective way to replace all occurrences of a character with another character in std::string ? 15 Answers ...
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Queue.Queue vs. collections.deque

I need a queue which multiple threads can put stuff into, and multiple threads may read from. 7 Answers ...
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Android List View Drag and Drop sort

I have a list of records in a listview that I want the user to be able to re-sort using a drag and drop method. I have seen this implemented in other apps, but I have not found a tutorial for it. It must be something that others need as well. Can anyone point me to some code for doing this? ...
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How to convert a currency string to a double with jQuery or Javascript?

I have a text box that will have a currency string in it that I then need to convert that string to a double to perform some operations on it. ...