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How update the _id of one MongoDB Document?
I want update an _id field of one document. I know it's not a really good pratice. But with some technical reason, I need update it. If I try to update it I get:
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How are Anonymous inner classes used in Java?
... of anonymous classes in Java? Can we say that usage of anonymous class is one of the advantages of Java?
18 Answers
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Enabling auto layout in iOS 6 while remaining backwards compatible with iOS 5
...in MainStoryboard.storyboard:3: Auto Layout on iOS Versions prior to 6.0
One of your options to use autolayout in a project and still preserve compatibility with iOS4-5 is to create two targets: one for deployment target iOS 6.0 and one for an earlier iOS version, e.g.:
You can create two vers...
Does const mean thread-safe in C++11?
... to say on thread-safety:
[1.10/4]
Two expression evaluations conflict if one of them modifies a memory location (1.7) and the other one accesses or modifies the same memory location.
[1.10/21]
The execution of a program contains a data race if it contains two conflicting actions in different threa...
SQL Server insert if not exists best practice
...ions results table which holds team member's names and their ranking on one hand.
8 Answers
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How to run travis-ci locally
...li-menu
.
Prerequisites
You have public repo on GitHub
You ran at least one build on Travis
You have Docker set up on your computer
Set up the build environment
Reference: https://docs.travis-ci.com/user/common-build-problems/
Make up your own temporary build ID
BUILDID="build-$RANDOM"
Vie...
Run javascript function when user finishes typing instead of on key up?
...ts start a timer when the user releases a key and clear it when they press one. I decided the input in question will be #myInput.
Making a few assumptions...
//setup before functions
var typingTimer; //timer identifier
var doneTypingInterval = 5000; //time in ms, 5 second for exam...
What's the bad magic number error?
... interpreter that can run the pyc files with that particular magic value.
One thing that might be causing the intermittent nature. The pyc that's causing the problem may only be imported under certain conditions. It's highly unlikely it would import sometimes. You should check the actual full stack...
What are the most interesting equivalences arising from the Curry-Howard Isomorphism?
...
Since you explicitly asked for the most interesting and obscure ones:
You can extend C-H to many interesting logics and formulations of logics to obtain a really wide variety of correspondences. Here I've tried to focus on some of the more interesting ones rather than on the obscure, pl...
What is the difference between ManualResetEvent and AutoResetEvent in .NET?
...rstand. An AutoResetEvent resets when the code passes through event.WaitOne() , but a ManualResetEvent does not.
11 An...