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A Java collection of value pairs? (tuples?)
...in the javafx.base module). EDIT: As of Java 11, JavaFX has been decoupled from the JDK, so you'd need the additional maven artifact org.openjfx:javafx-base.
Java 6+
In Java 6 and up, you can use the more verbose AbstractMap.SimpleImmutableEntry for an immutable pair, or AbstractMap.SimpleEntry ...
What's the difference between CENTER_INSIDE and FIT_CENTER scale types?
...urce and the destination container.
With the FIT_CENTER, that same image from the example above, would fit the entire container, because the sides are equal, and one axis is going to match the destination. With FIT_CENTER, if you had a box that was 5" x 10", and an image that was 5" x 7", the imag...
Filtering a list of strings based on contents
...t say they're very important to me, but I believe even newbies can benefit from thinking about programming this way, and definitely wouldn't call it inflicting.
– Eli Bendersky
Jan 28 '10 at 13:19
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angularjs directive call function specified in attribute and pass an argument to it
...
From my tests using this code in angular 1.2.28, it works well. My tests do not call theMethodToBeCalled with undefined on first load. Neither does the plunker example. This does not appear to be a problem. In other words, ...
Take the content of a list and append it to another list
...st
Using the list classes extend method, you can do a copy of the elements from one list onto another. However this will cause extra memory usage, which should be fine in most cases, but might cause problems if you want to be memory efficient.
a = [0,1,2]
b = [3,4,5]
a.extend(b)
>>[0,1,2,3,4,5...
API Versioning for Rails Routes
...he routes file 301 has been made the default redirect and for good reason. From the guides: Please note that this redirection is a 301 “Moved Permanently” redirect. Keep in mind that some web browsers or proxy servers will cache this type of redirect, making the old page inaccessible.
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Iterate through the fields of a struct in Go
...reflect.Value of the field by using Field(i) you can get a
interface value from it by calling Interface(). Said interface value then represents the
value of the field.
There is no function to convert the value of the field to a concrete type as there are,
as you may know, no generics in go. Thus, ...
How to know what the 'errno' means?
...
For reference, here is a list from Ubuntu 14.04 amd64 pastebin.com/407gDBPq
– kevinf
Aug 8 '14 at 18:31
...
An efficient way to transpose a file in Bash
...hape function in APL, comes with BSDs and OS X, but it should be available from package managers on other platforms.
A second option is to use Ruby:
ruby -e'puts readlines.map(&:split).transpose.map{|x|x*" "}'
A third option is to use jq:
jq -R .|jq -sr 'map(./" ")|transpose|map(join(" "))[...
Where is nodejs log file?
...errors to STDERR and output to STDOUT. You can change that when you run it from your shell to log to a file instead.
node my_app.js > my_app_log.log 2> my_app_err.log
Alternatively (recommended), you can add logging inside your application either manually or with one of the many log librari...