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Best way to test for a variable's existence in PHP; isset() is clearly broken
... This looks a bit ugly to me, but in the case where you're actually checking an array element, it makes much more sense: isset($foo[$bar]) becomes array_key_exists($bar, $foo)
– Arild
Aug 25 '14 at 14:12
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C#: Difference between List and Collection (CA1002, Do not expose generic lists) [duplicate]
... Just FYI, Collection<T> uses a List<T> instance internally.
– Zoltán Tamási
Sep 10 '15 at 18:17
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How can I beautify JSON programmatically? [duplicate]
...rowsers.
Manual formatting solution
If you don't need to do it programmatically, Try JSON Lint. Not only will it prettify your JSON, it will validate it at the same time.
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error LNK2038: mismatch detected for '_ITERATOR_DEBUG_LEVEL': value '0' doesn't match value '2' in m
... of solutions to my problem but none helped. I tried clean, rebuild. Reinstalled visual 2010 and change from professional to ultimate. But still I dont know why I have this error.
My project look like this:
1 Exe Solution to test my static library.
1 Dll Solution static library.
Code which is conve...
Android phone orientation overview including compass
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Roll is a function of gravity, a 90 degree roll puts all of gravity into the x register.
Pitch is the same, a 90 degree pitch up puts all of the component of gravity into the y register.
Yaw / Heading / azimuth has no effect on gravity, it is ALWAYS at right angles to gravity...
Getting the location from an IP address [duplicate]
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You could download a free GeoIP database and lookup the IP address locally, or you could use a third party service and perform a remote lookup. This is the simpler option, as it requires no setup, but it does introduce additional latency.
One third party service you could use is mine, http://...
What are the differences between .gitignore and .gitkeep?
...ack empty directories in Git have created the convention of putting files called .gitkeep in these directories. The file could be called anything; Git assigns no special significance to this name.
There is a competing convention of adding a .gitignore file to the empty directories to get them track...
Why does Eclipse automatically add appcompat v7 library support whenever I create a new project?
Why does Eclipse automatically add appcompat v7 library support whenever I create a new project?
10 Answers
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What does Redis do when it runs out of memory?
... time finding the answer. How does Redis 2.0 handle running out of maximum allocated memory? How does it decide which data to remove or which data to keep in memory?
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When would I use Task.Yield()?
... a lot but have never been using Task.Yield() and to be honest even with all the explanations I do not understand why I would need this method.
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