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Find value in an array

In Ruby, how can I find a value in an array? 10 Answers 10 ...
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IF statement: how to leave cell blank if condition is false (“” does not work)

I would like to write an IF statement, where the cell is left blank if the condition is FALSE. Note that, if the following formula is entered in C1 ( for which the condition is false ) for example: ...
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What is memory fragmentation?

I've heard the term "memory fragmentation" used a few times in the context of C++ dynamic memory allocation. I've found some questions about how to deal with memory fragmentation, but can't find a direct question that deals with it itself. So: ...
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Using @property versus getters and setters

Here is a pure Python-specific design question: 13 Answers 13 ...
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Why are arrays of references illegal?

The following code does not compile. 14 Answers 14 ...
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Ignore whitespace in HTML [duplicate]

Is there anything in HTML/CSS that tells the browser to ignore whitespace completely? 12 Answers ...
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Android: When should I use a Handler() and when should I use a Thread?

When I need something to run asynchronously , such as a long running task or a logic that uses the network, or for whatever reason, Starting a new Thread and running it works fine. Creating a Handler and running it works as well. What's the difference? When should I use each one? What are the...
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How to drop a list of rows from Pandas dataframe?

I have a dataframe df : 12 Answers 12 ...
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Find a value anywhere in a database

Given a #, how do I discover in what table and column it could be found within? 18 Answers ...
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How to use/install gcc on Mac OS X 10.8 / Xcode 4.4

I have install Mountain Lion (Mac OS X 10.8) and now gcc doesn't seem to be available anymore. I've also installed Xcode 4.4 so there is no more /Developer directory. ...