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Can you supply arguments to the map(&:method) syntax in Ruby?
...ne very sparingly and with great caution. \n\n Please consider inheriting from the existing class and modifying the newly created class. This generally achieves comparable results without the negative side effects of changing core ruby classes.
– rudolph9
May...
Comparing strings by their alphabetical order
...
Take a look at the String.compareTo method.
s1.compareTo(s2)
From the javadocs:
The result is a negative integer if
this String object lexicographically
precedes the argument string. The
result is a positive integer if this
String object lexicographically
follows the argu...
express 4.0 , express-session with odd warning message
...
From the future here. Still going to change soon :)
– comphonia
Feb 23 '19 at 19:13
add a comment
...
git ignore all files of a certain type, except those in a specific subfolder
...d the json files in spec directly, not the one in the somedir subdirectory from the question. I needed to use !spec/**/*.json in order to make sure the more_mocks.json was committed as well.
– Leith
Dec 1 '18 at 2:32
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Why is ArrayDeque better than LinkedList
... essentially involves JVM/OS, and that's expensive. Also, whenever you pop from any end, the internal nodes of LinkedList become eligible for garbage collection and that's more work behind the scene.
Also, since the linked list nodes are allocated here and there, usage of CPU cache won't provide mu...
What is the format specifier for unsigned short int?
...
From the Linux manual page:
h A following integer conversion corresponds to a short int or unsigned short int argument, or a fol‐
lowing n conversion corresponds to a pointer to a short int argument.
So to...
Java List.contains(Object with field value equal to x)
...a, you can take a functional approach and do the following
FluentIterable.from(list).find(new Predicate<MyObject>() {
public boolean apply(MyObject input) {
return "John".equals(input.getName());
}
}).Any();
which looks a little verbose. However the predicate is an object and yo...
jQuery equivalent of getting the context of a Canvas
...rences since jquery returns null as an object but working with the element from .get(0) may not fail so silently... You can easily check if the canvas was found first before .get(0) like
if( $("#canvas").length ) ctx = $("#canvas").get(0).getContext('2d');
else console.log('Error: Canvas not foun...
Set default CRAN mirror permanent in R
...f the file is given by ?Startup:
The
path of this file is taken from the value of the R_PROFILE
environment variable (after tilde expansion). If this variable is
unset, the default is R_HOME/etc/Rprofile.site, which is used if
it exists (which it does not in a 'facto...
iPad Safari scrolling causes HTML elements to disappear and reappear with a delay
...n case anyone is experiencing the same weirdness as me--slightly different from what is described on this page--I found that using $(window).width() instead of window.innerWidth in jQuery made all the difference for iOS. Who knows.
– cbmtrx
Nov 10 '15 at 19:17
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