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What are these attributes: `aria-labelledby` and `aria-hidden`
...ions (ARIA) defines ways to make Web
content and Web applications (especially those developed with Ajax and
JavaScript) more accessible to people with disabilities.
To be precise for your question, here is what your attributes are called as ARIA attribute states and model
aria-labelledby: ...
Is #pragma once part of the C++11 standard?
Traditionally, the standard and portable way to avoid multiple header inclusions in C++ was/is to use the #ifndef - #define - #endif pre-compiler directives scheme also called macro-guard scheme (see code snippet below).
...
CSS filter: make color image with transparency white
...jP.gif" class="filter" />
</p>
First, brightness(0) makes all image black, except transparent parts, which remain transparent.
Then, invert(1) makes the black parts white.
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Difference between an API and SDK
...ring in your house.
an SDK is implementation tooling. It's like a kit that allows** you to build something custom to hook up to the telephone system or electrical wiring.
*Anything can use an API. Some APIs have security provisions to require license keys, authentication, etc. which may prohibit c...
How do I use the new computeIfAbsent function?
...onacci(0)
memo.put(1,1L); //fibonacci(1)
}
And for the inductive step all we have to do is redefine our Fibonacci function as follows:
public static long fibonacci(int x) {
return memo.computeIfAbsent(x, n -> fibonacci(n-2) + fibonacci(n-1));
}
As you can see, the method computeIfAbsen...
Calculate the execution time of a method
...ch as JITing) causes varying execution times to occur. Therefore, realistically, for accurate measurements, the OP should be using a performance profiler.
– Matthew Layton
Dec 24 '12 at 9:56
...
Why does Eclipse Java Package Explorer show question mark on some classes?
...lipse Helios Java Package Explorer, I see the Java class icons display a small question mark to the right of the 'J', something like [J?]. This icon is shown on each class within one package in my project, but I cannot find an explanation for this in the documentation.
...
In Ruby on Rails, what's the difference between DateTime, Timestamp, Time and Date?
... While TIMESTAMP looks similar when you fetch it from the database, it's really a just a front for a unix timestamp. Its valid range goes from 1970 to 2038. The difference here, aside from the various built-in functions within the database engine, is storage space. Because DATETIME stores every digi...
Preserve HTML font-size when iPhone orientation changes from portrait to landscape
...-webkit-text-size-adjust: 100%; /* Prevent font scaling in landscape while allowing user zoom */
}
The use of this property is described further in the Safari Web Content Guide.
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how to draw directed graphs using networkx in python?
...f edge not in red_edges]
# Need to create a layout when doing
# separate calls to draw nodes and edges
pos = nx.spring_layout(G)
nx.draw_networkx_nodes(G, pos, cmap=plt.get_cmap('jet'),
node_color = values, node_size = 500)
nx.draw_networkx_labels(G, pos)
nx.draw_networkx_ed...