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Remove by _id in MongoDB console
... new for the ObjectId.
Also, note that in some drivers/tools, remove() is now deprecated and deleteOne or deleteMany should be used instead.
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~x + ~y == ~(x + y) is always false?
...d some y (mod 2n) such that
~(x+y) == ~x + ~y
By two's complement*, we know that,
-x == ~x + 1
<==> -1 == ~x + x
Noting this result, we have,
~(x+y) == ~x + ~y
<==> ~(x+y) + (x+y) == ~x + ~y + (x+y)
<==> ~(x+y) + (x+y) == (~x + x) + (~y + y)
<==> ~(x+y)...
Request format is unrecognized for URL unexpectedly ending in
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i kept it as is and for now the error seems to have gone away. if i see the error again i'll move the webservices configs into the webserver section.
– Daniel Brink
Apr 20 '10 at 8:08
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How can I scan barcodes on iOS?
... use an external framework or library. The iOS ecosystem with AVFoundation now fully supports scanning almost every code from QR over EAN to UPC.
Just have a look at the Tech Note and the AVFoundation programming guide. AVMetadataObjectTypeQRCode is your friend.
Here is a nice tutorial which shows...
Android adb not found
... I got the same error and then I did apt-get install ia32-libs but now how do I restart the configuration of the ADT tools in eclipse? I am running Ubuntu 12.04
– CodeKingPlusPlus
Jan 20 '13 at 15:51
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What is Gradle in Android Studio?
...using Eclipse for your development purposes, and, chances are, you didn't know how to build your Android APK without Eclipse.
You can do this on the command line, but you have to learn what each tool (dx, aapt) does in the SDK.
Eclipse saved us all from these low level but important, fundamental de...
Where is my .vimrc file?
... @Idigas I was typing :echo(xxx) on my command window but I realized now you meant to type this into the vim editor. However, even though :e xxx works, the :echo(xxx) doesn't. It says E121 Undefined Variable: xxx E15: Invalid Expression : ($xxx)
– Yannis Dran
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How can I generate a unique ID in Python? [duplicate]
...uction code (and about to roll out to more uses of it in a newer release). Now I'm scared!
– Matthew Schinckel
Nov 6 '10 at 7:38
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What to do with commit made in a detached head
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I know this is years later, but thanks for this answer. I didn't consider myself done searching with the accepted answer here because I didn't want to leave around a temporary branch and this answer has the command to delete it....
Alternative to iFrames with HTML5
I would like to know if there is an alternative to iFrames with HTML5.
I mean by that, be able to inject cross-domains HTML inside of a webpage without using an iFrame.
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