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How do I check if an index exists on a table field in MySQL?
I've needed to Google this a couple times, so I'm sharing my Q/A.
10 Answers
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Downcasting shared_ptr to shared_ptr?
Update: the shared_ptr in this example is like the one in Boost, but it doesn't support shared_polymorphic_downcast (or dynamic_pointer_cast or static_pointer_cast for that matter)!
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Inline instantiation of a constant List
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3 Answers
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Apache Spark: map vs mapPartitions?
What's the difference between an RDD's map and mapPartitions method? And does flatMap behave like map or like mapPartitions ? Thanks.
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How to extract a git subdirectory and make a submodule out of it?
I started a project some months ago and stored everything within a main directory.
In my main directory "Project" there are several subdirectories containing different things:
Project/paper contains a document written in LaTeX
Project/sourcecode/RailsApp contains my rails app.
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moment.js - UTC gives wrong date
Why does moment.js UTC always show the wrong date. For example from chrome's developer console:
2 Answers
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How to forward declare a template class in namespace std?
and used that function in my main. I get errors. Of course, I know that there are more template params for std::list (allocator I think). But, that is beside the point. Do I have to know the full template declaration of a template class to be able to forward declare it?
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What's a 3D doing in this HTML?
I'm trying to duplicate a mailer I got into my gmail by taking a look at its code. I see a lot of this in multiple source viewers:
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Get the name of the currently executing method
$0 is the variable for the top level Ruby program, but is there one for the current method?
5 Answers
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How to deal with IntelliJ IDEA project files under Git source control constantly changing?
Everyone on our team uses IntelliJ IDEA, and we find it useful to put its project files (.ipr and .iml) into source control so that we can share build configurations, settings, and inspections. Plus, we can then use those inspection settings on our continuous integration server with TeamCity. (We ha...