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Iterating through a list in reverse order in java
...re some ways of reverse-iterating the list, with the help of the Streaming API:
List<Integer> list = new ArrayList<Integer>(Arrays.asList(1, 3, 3, 7, 5));
list.stream().forEach(System.out::println); // 1 3 3 7 5
int size = list.size();
ListIterator<Integer> it = list.listIterato...
How to convert linq results to HashSet or HashedSet
...rting an IEnumerable to a HashSet: https://docs.microsoft.com/en-us/dotnet/api/?term=ToHashSet
public static System.Collections.Generic.HashSet<TSource> ToHashSet<TSource> (this System.Collections.Generic.IEnumerable<TSource> source);
It appears that I cannot use it in .NET stan...
Nodejs Event Loop
...raction around libev or IOCP depending on the platform, providing users an API based on libev. In the node-v0.9.0 version of libuv libev was removed.
Also one picture which describe the Event Loop in Node.js by @BusyRich
Update 05/09/2017
Per this doc Node.js event loop,
The following diag...
Java: Difference between PrintStream and PrintWriter
...er all, you wouldn't want each call to System.out to generate a deprecated API warning! Also, changing the type from PrintStream to PrintWriter on the standard output streams would have broken existing applications.)
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Detecting when user scrolls to bottom of div with jQuery
... more content
}
Source: https://developer.mozilla.org/en-US/docs/Web/API/Element/scrollHeight#Determine_if_an_element_has_been_totally_scrolled
Some elements won't allow you to scroll the full height of the element. In those cases you can use:
var element = docuement.getElementById('flux');
...
How to determine if a record is just created or updated in after_save
... to happen once after a new record has been saved.
More info here: http://api.rubyonrails.org/classes/ActiveRecord/Callbacks.html
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To draw an Underline below the TextView in Android
...ml.fromHtml(html));
But Html.fromHtml(String resource) was deprecated in API 24.
So you can use the latest android support library androidx.core.text.HtmlCompat. Before that, you need to include the dependency in your project.
`implementation 'androidx.core:core:1.0.1'`
String html = "<u&g...
Why must jUnit's fixtureSetup be static?
...the .class file is unspecified/compiler-dependent (IIRC, Java's reflection API returns the methods in the same order as they are declared in the .class file, although also that behaviour is unspecified - I have written a library for actually sorting them by their line numbers).
So enforcing those m...
Specifying and saving a figure with exact size in pixels
... for me.
You can find the documentation here: https://matplotlib.org/3.2.1/api/_as_gen/matplotlib.pyplot.imsave.html
#file_path = directory address where the image will be stored along with file name and extension
#array = variable where the image is stored. I think for the original post this varia...
How to prevent IFRAME from redirecting top-level window
...away from the page.
Example: https://developer.mozilla.org/en-US/docs/Web/API/Window.onbeforeunload
In HTML5 you can use sandbox property. Please see Pankrat's answer below.
http://www.html5rocks.com/en/tutorials/security/sandboxed-iframes/
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