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What is the difference between null and undefined in JavaScript?
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1107
In JavaScript, undefined means a variable has been declared but has not yet been assigned a val...
What should my Objective-C singleton look like? [closed]
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207
votes
Another option is to use the +(void)initialize method. From the documentati...
“java.lang.OutOfMemoryError : unable to create new native Thread”
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80
This is not a memory problem even though the exception name highly suggests so, but an operating...
How can I add an empty directory to a Git repository?
...hen you don't have to get the order right the way that you have to do in m104's solution.
This also gives the benefit that files in that directory won't show up as "untracked" when you do a git status.
Making @GreenAsJade's comment persistent:
I think it's worth noting that this solution does ...
How do I pass JavaScript variables to PHP?
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+50
You cannot pass variable values from the current page JavaScript code to the current page PHP code... PHP code runs at the server side...
What is the difference between single and double quotes in SQL?
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answered Jan 2 '10 at 18:22
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Compelling examples of custom C++ allocators?
... (embed or console).
– Naaff
May 5 '09 at 21:42
7
The original link is now defunct, but CiteSeer ...
PostgreSQL create table if not exists
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edited Aug 20 at 11:13
answered Sep 15 '11 at 22:34
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How to “return an object” in C++?
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107
I don't want to return a copied value because it's inefficient
Prove it.
Look up RVO and ...
How to determine when Fragment becomes visible in ViewPager
...Pager.
– Oasis Feng
Nov 14 '12 at 3:05
59
I have found that the setUserVisibleHint method gets ca...