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How to efficiently count the number of keys/properties of an object in JavaScript?
What's the fastest way to count the number of keys/properties of an object? It it possible to do this without iterating over the object? i.e. without doing
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Expand div to max width when float:left is set
... <p>is</p>
<p>this</p>
<p>what</p>
<p>you are looking for?</p>
</div>
</div>
</body>
</html>
share
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Formatting code in Notepad++
...l auto-indent either PHP or JS on this day 2017-05-29. Can anyone explain what's going wrong and why the simple business of automatically indenting PHP and JS code is proving such a b*tching pain in the ***?
– mike rodent
May 29 '17 at 17:36
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How can I add a box-shadow on one side of an element?
...ions were to create only the vertical part of the shadow. Exactly the same what background:url(shadow.png) 100% 0% repeat-y would do.
– tillda
Feb 25 '11 at 9:30
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C++ project organisation (with gtest, cmake and doxygen)
... actual application. Your headers are the
basis for users to interact with what you offer and must be
installed. This means they have to be in a subdirectory (no-one wants
lots of headers ending up in top-level /usr/include/) and your
headers must be able to include themselves with such a setup.
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Accessing class variables from a list comprehension in the class definition
...ng it to be used as a nonlocal scope as well leads to undefined behaviour; what would happen if a class method referred to x as a nested scope variable, then manipulates Foo.x as well, for example? More importantly, what would that mean for subclasses of Foo? Python has to treat a class scope differ...
Is there a documented way to set the iPhone orientation?
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From what I can tell, the setOrientation: method doesn't work (or perhaps works no longer). Here's what I'm doing to do this:
first, put this define at the top of your file, right under your #imports:
#define degreesToRadian(x)...
Regular vs Context Free Grammars
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I think what you want to think about are the various pumping lemmata. A regular language can be recognized by a finite automaton. A context-free language requires a stack, and a context sensitive language requires two stacks (which ...
How can I tell if I'm running in 64-bit JVM or 32-bit JVM (from within a program)?
...f the JVM in which my application runs is 32 bit or 64-bit? Specifically, what functions or properties I can used to detect this within the program?
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jQuery .data() does not work, but .attr() does
...s/jquery/3.3.1/jquery.min.js"></script>
data also massages what it finds in various ways, guessing at data types, making data("answer") on an element with data-answer="42" a number, not a string, or even parsing things as JSON if they look like JSON:
console.log(typeof $("[data-...