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Checking if a variable is defined?
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If you want to set a variable if it doesn't exist and leave it alone if it does, see @danmayer's answer (involving the ||= operator) below.
– jrdioko
Jul 12 '11 at 21:29
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How can I check MySQL engine type for a specific table?
...ntains several tables using different storage engines
(specifically myisam and innodb). How can I find out which tables are
using which engine?
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Learn C first before learning Objective-C [closed]
... community if it is better to learn C first before moving into Objective-C and ultimately the Cocoa Framework?
23 Answers
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C++ STL Vectors: Get iterator from index?
...sert(pos, first, last) is the function I want... except I only have first and last as ints. Is there any nice way I can get an iterator to these values?
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django import error - No module named core.management
... I see plenty of these errors around. I have tried everything I know to do and have yet to figure this out.
29 Answers
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Why is my xlabel cut off in my matplotlib plot?
...t is quite "tall" (it's a formula rendered in TeX that contains a fraction and is therefore has the height equivalent of a couple of lines of text).
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Check whether an input string contains a number in javascript
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Exactly what I needed. Thanks
– AndyH
Oct 18 '16 at 7:35
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Undefined method 'task' using Rake 0.9.0
I just updated Rake to the latest version ( 0.9.0.beta.4 ) and the rake command ends up with the following error message:
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Why doesn't JavaScript have a last method? [closed]
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Because Javascript changes very slowly. And that's because people upgrade browsers slowly.
Many Javascript libraries implement their own last() function. Use one!
share
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Is there any use for unique_ptr with array?
...ocators. Some people need a dynamically sized array, so std::array is out. And some people get their arrays from other code that is known to return an array; and that code isn't going to be rewritten to return a vector or something.
By allowing unique_ptr<T[]>, you service those needs.
In sh...