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How do I perform the SQL Join equivalent in MongoDB?
How do I perform the SQL Join equivalent in MongoDB?
19 Answers
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Reference - What does this error mean in PHP?
...ormation - headers already sent
Happens when your script tries to send an HTTP header to the client but there already was output before, which resulted in headers to be already sent to the client.
This is an E_WARNING and it will not stop the script.
A typical example would be a template file lik...
What should I use Android AccountManager for?
...er and store the accounts data elsewhere (maybe in the shared preferences) http://developer.android.com/guide/topics/data/data-storage.html
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Reliable way for a Bash script to get the full path to itself [duplicate]
...ry to run this script from a PIPE it will not work
wget -o /dev/null -O - http://host.domain/dir/script.sh |bash
Technically speaking, it is undefined. Practically speaking, there is no sane way to detect this. (A co-process can not access the environment of the parent.)
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How do you rotate a two dimensional array?
Inspired by Raymond Chen's post , say you have a 4x4 two dimensional array, write a function that rotates it 90 degrees. Raymond links to a solution in pseudo code, but I'd like to see some real world stuff.
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How can I negate the return-value of a process?
I'm looking for a simple, but cross-platform negate -process that negates the value a process returns. It should map 0 to some value != 0 and any value != 0 to 0, i.e. the following command should return "yes, nonexistingpath doesn't exist":
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What does cherry-picking a commit with Git mean?
...h, where hash is a commit hash from other branch.
For full procedure see: http://technosophos.com/2009/12/04/git-cherry-picking-move-small-code-patches-across-branches.html
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Evil Mode best practice? [closed]
...hink you'll find every instance of keymapping in my keymapping config file https://github.com/mbriggs/.emacs.d-oldv2/blob/master/init/init-keymaps.el
Keep in mind, I am rebinding stuff that real emacs users would consider heresy, so YMMV if you ever want to learn "real" emacs (I really don't).
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UIView Infinite 360 degree rotation animation?
I'm trying to rotate a UIImageView 360 degrees, and have looked at several tutorials online. I could get none of them working, without the UIView either stopping, or jumping to a new position.
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How do I get the number of elements in a list?
Consider the following:
9 Answers
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