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What's the difference between URI.escape and CGI.escape?
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There were some small differences, but the important point is that URI.escape has been deprecated in Ruby 1.9.2... so use CGI::escape or ERB::Util.url_encode.
There is a long discussion on ruby-core for those interested which also mentions WEBrick::HTTPUtils.escape and ...
How to check whether an object has certain method/property?
...ic pattern perhaps? You can call any method/property using the dynamic keyword, right? How to check whether the method exist before calling myDynamicObject.DoStuff(), for example?
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Is 161803398 A 'Special' Number? Inside of Math.Random()
...answer is 'Because of Math', but I was hoping someone could give a little more insight at a basic level...
2 Answers
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Node.js and CPU intensive requests
... side Javascript but something is keeping me from starting to use Node.js for my web application.
5 Answers
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Do I need to store the salt with bcrypt?
bCrypt's javadoc has this code for how to encrypt a password:
1 Answer
1
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How to make graphics with transparent background in R using ggplot2?
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Updated with the theme() function, ggsave() and the code for the legend background:
df <- data.frame(y = d, x = 1, group = rep(c("gr1", "gr2"), 50))
p <- ggplot(df) +
stat_boxplot(aes(x = x, y = y, color = group),
fill = "transparent" # for the inside of the...
Multiple Type Constraints in Swift
...<T: SomeProtocol & SomeOtherProtocol>(arg: T) {
// stuff
}
or the more powerful where clause:
func someFunc<T>(arg: T) where T:SomeProtocol, T:SomeOtherProtocol{
// stuff
}
You can of course use protocol composition (e.g., protocol<SomeProtocol, SomeOtherProtocol> ...
Does a dot have to be escaped in a character class (square brackets) of a regular expression?
A dot . in a regular expression matches any single character. In order for regex to match a dot, the dot has to be escaped: \.
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What's with 181783497276652981 and 8682522807148012 in Random (Java 7)?
...ve an acceptable merit?
This could be determined using the evaluation algorithm presented in the paper. But the merit of the "original" number is probably higher.
And why was 8682522807148012 chosen?
Seems to be random. It could be the result of System.nanoTime() when the code was written.
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How do I test if a string is empty in Objective-C?
...his will result in a false negative (saying the string isn't empty, when, for practical purposes, it is). Consider @"\u200B" (consisting only of Unicode character ZERO WIDTH SPACE. Printing it out will print 0 characters (verify using monospaced font), but string.length will give 1. There are other ...