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How to remove an item for a OR'd enum?
...omplement ~Q), the statement X & ~Q clears any bits that were set in Q from X and returns the result.
So to remove or clear the BLUE bits, you use the following statement:
colorsWithoutBlue = colors & ~Blah.BLUE
colors &= ~Blah.BLUE // This one removes the bit from 'colors' itself
Yo...
What is the purpose of the word 'self'?
...elf word in Python? I understand it refers to the specific object created from that class, but I can't see why it explicitly needs to be added to every function as a parameter. To illustrate, in Ruby I can do this:
...
How can I respond to the width of an auto-sized DOM element in React?
...complex web page using React components, and am trying to convert the page from a static layout to a more responsive, resizable layout. However, I keep running into limitations with React, and am wondering if there's a standard pattern for handling these issues. In my specific case, I have a compone...
How to create a new branch from a tag?
I'd like to create a new master branch from an existing tag. Say I have a tag v1.0 . How to create a new branch from this tag?
...
Accessing MVC's model property from Javascript
...rm, there's no need to add a ; at the end of it? Because I do get a prompt from VS stating the statement isn't terminated. But when I try to add ; the code doesn't run
– Null Reference
May 3 '13 at 14:37
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What belongs in an educational tool to demonstrate the unwarranted assumptions people make in C/C++?
...&var.int2-&var.int1, &var.int1+diff==&var.int2)' is false.
From what I can say with my puny test cases, you are Stop at 0x0013f3: (106) Invalid instruction 0x00dd
printf crashes. "O_O"
gcc 4.4@x86_64-suse-linux
We like to think that:
..05 int has the size of pointers
but 'sizeo...
Rolling median algorithm in C
...plement a rolling median filter (analogous to a rolling mean filter) in C. From my search of the literature, there appear to be two reasonably efficient ways to do it. The first is to sort the initial window of values, then perform a binary search to insert the new value and remove the existing one ...
How do I manage MongoDB connections in a Node.js web application?
....
So, to answer your question directly, reuse the db object that results from MongoClient.connect(). This gives you pooling, and will provide a noticeable speed increase as compared with opening/closing connections on each db action.
...
ping response “Request timed out.” vs “Destination Host unreachable”
...ce between Request timed out and Destination host unreachable returned from the command?
4 Answers
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What causes and what are the differences between NoClassDefFoundError and ClassNotFoundException?
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The difference from the Java API Specifications is as follows.
For ClassNotFoundException:
Thrown when an application tries to
load in a class through its string
name using:
The forName method in class Class.
The findSyst...