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What is the “__v” field in Mongoose
... accesses the right collection version.
More information can be found at: http://aaronheckmann.blogspot.com/2012/06/mongoose-v3-part-1-versioning.html
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Jasmine.js comparing arrays
...
Just did the test and it works with toEqual
please find my test:
http://jsfiddle.net/7q9N7/3/
describe('toEqual', function() {
it('passes if arrays are equal', function() {
var arr = [1, 2, 3];
expect(arr).toEqual([1, 2, 3]);
});
});
Just for information:
toB...
C/C++ NaN constant (literal)?
...
This can be done using the numeric_limits in C++:
http://www.cplusplus.com/reference/limits/numeric_limits/
These are the methods you probably want to look at:
infinity() T Representation of positive infinity, if available.
quiet_NaN() T Representation of quiet (non-s...
How can I create tests in Android Studio?
...8"?>
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context="com.example.myapp.MainActivity...
What are the differences between various threading synchronization options in C#?
...cessary:
You can see an example of how monitors can be implemented here:
http://cvs.savannah.gnu.org/viewvc/dotgnu-pnet/pnet/engine/lib_monitor.c?revision=1.7&view=markup
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How to conditionally push an item in an observable array?
...t id="vid" />
<button onclick="find()">Set by id</button>
http://jsfiddle.net/rathore_gee/Y4wcJ/
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How do I vertically center UITextField Text?
...scenders, descenders etc.
(source: ilovetypography.com)
(Image thanks to http://ilovetypography.com/2009/01/14/inconspicuous-vertical-metrics/ )
When you're dealing with just numbers for example, the standard center alignment won't look quite right. Compare the difference in the two below, which ...
How to clone a case class instance and change just one field in Scala?
...It turns out it is just a few lines of code in the scalaz library:
/** http://stackoverflow.com/a/5597750/329496 */
case class Lens[A, B](get: A => B, set: (A, B) => A) extends ((A) => B) with Immutable {
def apply(whole: A): B = get(whole)
def mod(a: A, f: B => B) = set(a...
Listing all permutations of a string/integer
.....z) -->
a + perm(...), b + perm(....)
....
I found the pseudocode on http://www.programmersheaven.com/mb/Algorithms/369713/369713/permutation-algorithm-help/:
makePermutations(permutation) {
if (length permutation < required length) {
for (i = min digit to max digit) {
if (i not...
Finding the path of the program that will execute from the command line in Windows
...ideas for this script were taken from Raymond Chen's blog:
rem
rem http://blogs.msdn.com/b/oldnewthing/archive/2005/01/20/357225.asp
rem
rem
rem - it'll be nice to at some point extend this so it won't stop on the first match. That'll
rem help diagnose situations with a conflict of some ...