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How can you hide database output in Rails console?
...logging in console)
To turn it back on
ActiveRecord::Base.logger.level = 0
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Does static constexpr variable inside a function make sense?
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240
The short answer is that not only is static useful, it is pretty well always going to be desired...
How to trim leading and trailing white spaces of a string?
... Denys SéguretDenys Séguret
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Create space at the beginning of a UITextField
...t 4.2
class TextField: UITextField {
let padding = UIEdgeInsets(top: 0, left: 5, bottom: 0, right: 5)
override open func textRect(forBounds bounds: CGRect) -> CGRect {
return bounds.inset(by: padding)
}
override open func placeholderRect(forBounds bounds: CGRect) ->...
How does a garbage collector avoid an infinite loop here?
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110
As per Richter in the second edition of CLR via C# (yes I need to update):
Page 478
For (Th...
Remove grid, background color, and top and right borders from ggplot2
...d panel.background to see the axis lines.
library(ggplot2)
a <- seq(1,20)
b <- a^0.25
df <- as.data.frame(cbind(a,b))
ggplot(df, aes(x = a, y = b)) + geom_point() +
theme_bw() +
theme(axis.line = element_line(colour = "black"),
panel.grid.major = element_blank(),
panel.grid.mi...
:not(:empty) CSS selector is not working?
...
BoltClock♦BoltClock
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Git flow release branches and tags - with or without “v” prefix
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101
Well, basically it is a matter of preference, but I prefer the version with the v, as Semver do...
The cast to value type 'Int32' failed because the materialized value is null
...where there can be unexpected nulls in different places. ...DefaultIfEmpty(0).Sum(0) can help in this (quite simple) case, where there might be no elements and sql's SUM returns null whereas c# expect 0.
A more general approach is to use ?? which will be translated to COALESCE whenever there is a r...
How do I create a datetime in Python from milliseconds?
...
Just convert it to timestamp
datetime.datetime.fromtimestamp(ms/1000.0)
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