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I need to generate uuid for my rails application. What are the options(gems) I have? [duplicate]
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ruby 1.8.x is not supposed to be used anymore
– apneadiving
Aug 25 '14 at 17:33
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Can “this” ever be null in Java?
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How do I change the default port (9000) that Play uses when I execute the “run” command?
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Remove columns from dataframe where ALL values are NA
...h will be an object the same size as df.
Here are two approaches that are more memory and time efficient
An approach using Filter
Filter(function(x)!all(is.na(x)), df)
and an approach using data.table (for general time and memory efficiency)
library(data.table)
DT <- as.data.table(df)
DT[,w...
Transaction count after EXECUTE indicates a mismatching number of BEGIN and COMMIT statements. Previ
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Why “no projects found to import”?
... it.......when you press new -> java project .........then there are no more options, you just get the dialog for adding a new project.
– Saher Ahwal
Jul 12 '11 at 18:35
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What is the maximum recursion depth in Python, and how to increase it?
...ge optimized for it. For the right sort of problem, it may be considerably more expressive an an iterative implementation. The answer probably means "in Python specifically" but that isn't what it says
– Peter R
Mar 6 '17 at 15:04
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How do you use script variables in psql?
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HTML 5 Favicon - Support?
... size as every browser will scale down the image as necessary. I could add more HTML to specify multiple sizes if desired for those with a lower bandwidth but I am already compressing the PNG files heavily using TinyPNG and I find this unnecessary for my purposes. Also, according to philippe_b's ans...
Set icon for Android application
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