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What is the instanceof operator in JavaScript?
... type.
Here are some good examples and here is an example taken directly from Mozilla's developer site:
var color1 = new String("green");
color1 instanceof String; // returns true
var color2 = "coral"; //no type specified
color2 instanceof String; // returns false (color2 is not a String object)
...
Best algorithm for detecting cycles in a directed graph [closed]
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has the pseudo-code for one algorithm, and a brief description of another from Tarjan. Both have O(|V| + |E|) time complexity.
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Call two functions from same onclick [duplicate]
...t hey, might as well add it in for good measure.
Here is a good reference from SitePoint http://reference.sitepoint.com/html/event-attributes/onclick
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How do I disable right click on my web page?
... We are deploying onto kiosk machines and chose this way to disable users from refreshing the page.
– Todd Horst
Jul 31 '13 at 20:08
22
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Move assignment operator and `if (this != &rhs)`
...his;
}
In the typical use case of move assignment, *this will be a moved-from object and so delete [] mArray; should be a no-op. It is critical that implementations make delete on a nullptr as fast as possible.
Caveat:
Some will argue that swap(x, x) is a good idea, or just a necessary evil. A...
What are the basic rules and idioms for operator overloading?
...ed in hardware interfacing for the bit-manipulation functions they inherit from C, have become more prevalent as overloaded stream input and output operators in most applications. For guidance overloading as bit-manipulation operators, see the section below on Binary Arithmetic Operators. For impl...
How to overload __init__ method based on argument type?
...s MyData:
... def __init__(self, data):
... "Initialize MyData from a sequence"
... self.data = data
...
... @classmethod
... def fromfilename(cls, filename):
... "Initialize MyData from a file"
... data = open(filename).readlines()
... return...
When should I use a struct rather than a class in C#?
...crosoft - what is the stance on struct usage? I sought some extra learning from Microsoft, and here is what I found:
Consider defining a structure instead of a class if instances of the
type are small and commonly short-lived or are commonly embedded in
other objects.
Do not define a ...
java.lang.UnsupportedClassVersionError: Bad version number in .class file?
...ting this error when I include an opensource library that I had to compile from source. Now, all the suggestions on the web indicate that the code was compiled in one version and executed in another version (new on old). However, I only have one version of JRE on my system. If I run the commands:...
How can I check if a program exists from a Bash script?
...y do what you want, while the effects of external commands can easily vary from system to system.
Why care?
Many operating systems have a which that doesn't even set an exit status, meaning the if which foo won't even work there and will always report that foo exists, even if it doesn't (note that ...