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Possibility of duplicate Mongo ObjectId's being generated in two different collections?
...collection-independent; it's global. The Java driver, for example, uses a randomly initialized, static AtomicInteger.
So why, in the Mongo docs, do they say that the IDs are "highly likely" to be unique, instead of outright saying that they WILL be unique? Three possibilities can occur where you w...
Access restriction on class due to restriction on required library rt.jar?
...was created by IBM's WSDL2Java on Java5 without recreating the stubs and saw this error in Eclipse .
I'm under the assumption that the stubs generated should just compile as long as the runtime jars are available (they are).
...
Best way to randomize an array with .NET
What is the best way to randomize an array of strings with .NET? My array contains about 500 strings and I'd like to create a new Array with the same strings but in a random order.
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Remove an item from a dictionary when its key is unknown
...re currently testing for object identity (is only returns True if both operands are represented by the same object in memory - this is not always the case with two object that compare equal with ==). If you are doing this on purpose, then you could rewrite your code as
some_dict = {key: value for k...
How to loop over directories in Linux?
I am writing a script in bash on Linux and need to go through all subdirectory names in a given directory. How can I loop through these directories (and skip regular files)?
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Simple (non-secure) hash function for JavaScript? [duplicate]
... can simply call .hashCode() on any string, e.g. "some string".hashCode(), and receive a numerical hash code (more specifically, a Java equivalent) such as 1395333309.
String.prototype.hashCode = function() {
var hash = 0;
if (this.length == 0) {
return hash;
}
for (var i =...
Pro JavaScript programmer interview questions (with answers) [closed]
...ncredible complexity, you should be able to ask relatively basic questions and find out if they are really that good based on their answers. For instance, my standard first question to gauge the rest of the interview is:
In JavaScript, what is the difference between var x = 1 and x = 1? Answer...
What does Expression.Quote() do that Expression.Constant() can’t already do?
...e quote operator is an operator which induces closure semantics on its operand. Constants are just values.
Quotes and constants have different meanings and therefore have different representations in an expression tree. Having the same representation for two very different things is extremely confu...
How do I remove all non-ASCII characters with regex and Notepad++?
...SCII values:
[^\x00-\x7F]+
Tick off 'Search Mode = Regular expression', and click Find Next.
Source: Regex any ASCII character
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Intel HAXM installation error - This computer does not support Intel Virtualization Technology (VT-x
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Just follows these steps:
Go to Control Panel → Program and Feature.
Click on Turn Window Features on and off. A window opens.
Uncheck Hyper-V and Windows Hypervisor Platform options and restart your system.
Now, you can Start HAXM installation without any error.
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