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ERROR: Error installing capybara-webkit:
...ou are on Mac
brew install qt
and then
gem install capybara-webkit -v '0.11.0'
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Code Golf: Collatz Conjecture
Inspired by http://xkcd.com/710/ here is a code golf for it.
70 Answers
70
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Controlling maven final name of jar artifact
...
303
You set the finalName property in the plugin configuration section:
<plugin>
<gro...
unable to start mongodb local server
...Cumulo Nimbus
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answered Jan 31 '13 at 12:03
morphymorphy
1,77911 gold badge...
How to add leading zeros?
...f digits to begin with, so let's try a harder example of making powers of 10 width 8 too.
anim <- 25499:25504
x <- 10 ^ (0:5)
paste (and it's variant paste0) are often the first string manipulation functions that you come across. They aren't really designed for manipulating numbers, but ...
How to match a String against string literals in Rust?
...
101
You can do something like this:
match &stringthing[..] {
"a" => println!("0"),
...
Changing UIImage color
...AlwaysTemplate];
[theImageView setTintColor:[UIColor redColor]];
Swift 2.0:
theImageView.image = theImageView.image?.imageWithRenderingMode(.AlwaysTemplate)
theImageView.tintColor = UIColor.magentaColor()
Swift 4.0:
theImageView.image = theImageView.image?.withRenderingMode(.alwaysTemplate)
...
How to print a percentage value in python?
...supports a percentage floating point precision type:
>>> print "{0:.0%}".format(1./3)
33%
If you don't want integer division, you can import Python3's division from __future__:
>>> from __future__ import division
>>> 1 / 3
0.3333333333333333
# The above 33% example wo...
How can I count the number of matches for a regex?
... following. (Starting from Java 9, there is a nicer solution)
int count = 0;
while (matcher.find())
count++;
Btw, matcher.groupCount() is something completely different.
Complete example:
import java.util.regex.*;
class Test {
public static void main(String[] args) {
String hel...