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Collisions when generating UUIDs in JavaScript?
...rom Math.random(). For some browsers the entropy is as low as just 41 bits all together. Calling Math.random() multiple times won't raise the entropy. If you really want unique v4 UUIDs you need to use a cryptographically strong RNG that produces at least 122bit entropy per UUID generated.
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How to get milliseconds from LocalDateTime in Java 8
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Sure, if all you need is seconds, not milliseconds.
– Stuart Marks
May 30 '14 at 17:23
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What does “Object reference not set to an instance of an object” mean? [duplicate]
...hod()
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This is a very common error and can occur because of all kinds of reasons. The root cause really depends on the specific scenario that you've encountered.
If you are using an API or invoking methods that may return null then it's important to handle this gracefully. The main m...
Android Studio Stuck at Gradle Download on create new project
I have installed the new Android Studio . Everything was working fine but when I try to create a new project it gets stuck at downloading Gradle .
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Label on the left side instead above an input field
...te CSS to fix the issue.
However, I find it odd that I need to do this at all. I couldn't help but feel this manipulation was both annoying and in the long term, error prone. Ultimately, I used a dummy class and some JS to globally shim all my inline inputs. It was small number of cases, so not muc...
Difference between 'python setup.py install' and 'pip install'
I have an external package I want to install into my python virtualenv from a tar file.
What is the best way to install the package?
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How Should I Declare Foreign Key Relationships Using Code First Entity Framework (4.1) in MVC3?
...hips and other constraints using code first EF 4.1 without much luck. Basically I am building the data model in code and using MVC3 to query that model. Everything works via MVC which is great (kudos to Microsoft!) but now I want it NOT to work because I need to have data model constraints.
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Google MAP API Uncaught TypeError: Cannot read property 'offsetWidth' of null
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This problem is usually due to the map div not being rendered before the javascript runs that needs to access it.
You should put your initialization code inside an onload function or at the bottom of your HTML file, just before the tag, so th...
How do I open an old MVC project in Visual Studio 2012 or Visual Studio 2013?
...unsupported MVC project in Visual Studio 2012 or Visual Studio 2013 is actually pretty easy to accomplish with two steps. In fact, as bytebender’s comment indicates, these same steps should apply to and work for MVC 1 projects. However, I haven’t tested them and therefore cannot guarantee that t...
In WPF, what are the differences between the x:Name and Name attributes?
The title says it all. Sometimes it seems that the Name and x:Name attributes are interchangeable.
15 Answers
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