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Add unique constraint to combination of two columns
I have a table and, somehow, the same person got into my Person table twice. Right now, the primary key is just an autonumber but there are two other fields that exist that I want to force to be unique.
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How to make node.js require absolute? (instead of relative)
I would like to require my files always by the root of my project and not relative to the current module.
36 Answers
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Android ACTION_IMAGE_CAPTURE Intent
We are trying to use the native camera app to let the user take a new picture. It works just fine if we leave out the EXTRA_OUTPUT extra and returns the small Bitmap image. However, if we putExtra(EXTRA_OUTPUT,...) on the intent before starting it, everything works until you try to hit the "Ok" ...
How to implement common bash idioms in Python? [closed]
...ently do my textfile manipulation through a bunch of badly remembered AWK, sed, Bash and a tiny bit of Perl.
17 Answers
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C++ equivalent of Java's toString?
I'd like to control what is written to a stream, i.e. cout , for an object of a custom class. Is that possible in C++? In Java you could override the toString() method for similar purpose.
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Javascript calculate the day of the year (1 - 366)
How do I use javascript to calculate the day of the year, from 1 - 366? For example:
22 Answers
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Detect iPad Mini in HTML5
Apple's iPad Mini is a smaller clone of the iPad 2 in more ways than we'd want. In JavaScript, the window.navigator object exposes the same values for the Mini and iPad 2. My tests so far to detect the difference have not lead to success.
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Compute a confidence interval from sample data
I have sample data which I would like to compute a confidence interval for, assuming a normal distribution.
4 Answers
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How does the new automatic reference counting mechanism work?
Can someone briefly explain to me how ARC works? I know it's different from Garbage Collection, but I was just wondering exactly how it worked.
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How can I keep Bootstrap popovers alive while being hovered?
I am using a Bootstrap popover to create a hover card showing user info, and I am triggering it on mouseover of a button. I want to keep this popover alive while the popover itself is being hovered, but it disappears as soon as the user stops hovering over the button. How can I do this?
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