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Rails auto-assigning id that already exists
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I'm guessing what that would do is have auto-assigning start with what is currently the highest value + 1?
– D-Nice
Jun 17 '12 at 4:49
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When should I use Write-Error vs. Throw? Terminating vs. non-terminating errors
...top a pipeline or a loop from continuing. Throw on the other hand produces what is called a terminating error. If you use throw, the pipeline and/or current loop will be terminated. In fact all execution will be terminated unless you use a trap or a try/catch structure to handle the terminating erro...
Postgres: Distinct but only for one column
...thing + more. So if you say DISTINCT ON (name) you must ORDER BY name then whatever else you want. Hardly ideal.
– Kevin Parker
Mar 19 at 17:37
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Is MATLAB OOP slow or am I doing something wrong?
...tied to filesystem state in a way that many other languages' are not.
So, what to do?
An idiomatic MATLAB approach to this is to "vectorize" your code by structuring your class definitions such that an object instance wraps an array; that is, each of its fields hold parallel arrays (called "planar...
How do you remove duplicates from a list whilst preserving order?
... (stackoverflow.com/questions/3949310/…), so basically you're just doing what the interpreter would've done anyway.
– Imran
Jun 18 '13 at 6:58
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Which iOS app version/build number(s) MUST be incremented upon App Store release?
... CFBundleVersion remain the same between app updates?
No. (Meta question, what would the use case be here? If you've edited the payload in any way, the build will be different, and the user will want to know about it). If you try, you'll see error messages like below:
Or are they compared to the ...
Find unmerged Git branches?
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Try this:
git branch --merged master
It does what it says on the tin (lists branches which have been merged into master). You can also pull up the inverse with:
git branch --no-merged master
If you don't specify master, e.g...
git branch --merged
then it will show...
How do I add a path to PYTHONPATH in virtualenv
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Also, if you know the absolute path, what's the point of a variable?
– Jamie Marshall
Jan 6 '19 at 23:08
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How to update bower.json with installed packages?
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What is the registry option it mentions when doing this - I had assumed this command would be doing just a local thing. I elected to keep mine private with that handy question but would like to learn what that meant - is ther...
Has reCaptcha been cracked / hacked / OCR'd / defeated / broken? [closed]
...n a single label by human judges are recycled as control words”. 2iasdo4 What Anonymous realized was that if they always labeled the unknown scanned text with the same word - and if they did this thousands and thousands of times eventually a large percentage of the unknown words would be mislabele...