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Getting all selected checkboxes in an array
...ks them. For the correct answer, in VanillaJS, please see the answer of zahid ullah below.
– jmknoll
Aug 31 '16 at 16:13
2
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From Arraylist to Array
...der Java versions using pre-sized array was recommended, as the reflection call which is necessary to create an array of proper size was quite slow. However since late updates of OpenJDK 6 this call was intrinsified, making the performance of the empty array version the same and sometimes even bette...
How can I use jQuery to make an input readonly?
...ngeable) but also cannot it be submitted.
jQuery approach (1):
$("#inputID").prop("readonly", true);
$("#inputID").prop("disabled", true);
jQuery approach (2):
$("#inputID").attr("readonly","readonly");
$("#inputID").attr("disabled", "disabled");
JavaScript approach:
document.getElementById...
How to set a border for an HTML div tag
...ing explicit about all the border properties. For example:
border:1px solid black;
See Border shorthand property. Although the other bits are optional some browsers don't set the width or colour to a default you'd expect. In your case I'd bet that it's the width that's zero unless specified.
...
How to use XPath contains() here?
...-value that contains a Model substring.
Examples
XML
<r>
<ul id="one">
<li>Model A</li>
<li>Foo</li>
</ul>
<ul id="two">
<li>Foo</li>
<li>Model A</li>
</ul>
</r>
XPaths
//ul[contains(l...
How is CountDownLatch used in Java Multithreading?
...tDownLatch.
Any thread, usually the main thread of the application, which calls CountDownLatch.await() will wait until count reaches zero or it's interrupted by another thread. All other threads are required to count down by calling CountDownLatch.countDown() once they are completed or ready.
As ...
C++ performance vs. Java/C#
...op of a virtual machine which abstracts away the native architecture. Logically it would seem impossible for Java or C# to match the speed of C++ because of this intermediate step, however I've been told that the latest compilers ("hot spot") can attain this speed or even exceed it.
...
Replace console output in Python
...stdout.write("#" * (40 - progress_x) + "]\n")
sys.stdout.flush()
You call startProgress passing the description of the operation, then progress(x) where x is the percentage and finally endProgress()
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How to scp in Python?
...(server, port, user, password)
scp = SCPClient(ssh.get_transport())
Then call scp.get() or scp.put() to do SCP operations.
(SCPClient code)
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Where can I learn how to write C code to speed up slow R functions? [closed]
...
See Edit 3 and yes, you can. Meyers calls C++ a 'four paradigm' language and you do not have to use all four. Using it as 'just a better C' and use Rcpp as glue to R is perfectly fine. Nobody forces a style on you -- this ain't Java ;-)
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