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What is the instanceof operator in JavaScript?
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instanceof
The Left Hand Side (LHS) operand is the actual object being tested to the Right Hand Side (RHS) operand which is the actual constructor of a class. The basic definition is:
Checks the current object and returns true if the object
is o...
How to merge the current branch into another branch
I have two branches, master and dev. I always work on dev and only check code into the master branch once it's been approved for production use. When I do so, I have to do the following:
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How to iterate over values of an Enum having flags?
...riable? Or do I have to use Enum.GetValues to iterate over the entire enum and check which ones are set?
16 Answers
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What is the point of function pointers?
...acks: You call a function f() passing the address of another function g(), and f() calls g() for some specific task. If you pass f() the address of h() instead, then f() will call back h() instead.
Basically, this is a way to parametrize a function: Some part of its behavior is not hard-coded into...
When should I use double instead of decimal?
...ing to offer at least as great precision (someone correct me if I'm wrong) and definitely greater speed for arbitrary real numbers. The simple conclusion is: when considering which to use, always use double unless you need the base 10 accuracy that decimal offers.
Edit:
Regarding your additional q...
WHERE vs HAVING
...ns you create yourself (for example select 1 as "number" ) after HAVING and not WHERE in MySQL?
7 Answers
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Cmake doesn't find Boost
...specified folder. I have specified Boost_INCLUDE_DIR , Boost_LIBRARYDIR and BOOST_ROOT , but I still get an error saying that CMake is not able to find Boost. What could be the reason of such error?
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Getting multiple keys of specified value of a generic Dictionary?
...tionary? Not that it is important or anything, just curious to if I understand things correctly here...
– Svish
Aug 4 '09 at 14:14
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Install NPM into home directory with distribution nodejs package (Ubuntu)
...s. Here's how I suggest compartmentalizing Nodejs packages:
Install Nodejs and NPM via the chris-lea PPA. Then I set up a package root in my homedir to hold the Node "global" packages:
$ NPM_PACKAGES="$HOME/.npm-packages"
$ mkdir -p "$NPM_PACKAGES"
Set NPM to use this directory for its global pac...
How do you allow spaces to be entered using scanf?
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People (and especially beginners) should never use scanf("%s") or gets() or any other functions that do not have buffer overflow protection, unless you know for certain that the input will always be of a specific format (and perhaps ...