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How to add to an existing hash in Ruby
... have keys of nearly any type you can throw at it. This makes it different from the dictionary structures you find in other languages.
It's important to keep in mind that the specific nature of a key of a hash often matters:
hash = { :a => 'a' }
# Fetch with Symbol :a finds the right value
has...
Convert Java Array to Iterable
...ion>
<type>jar</type>
</dependency>
For Java8: (from Jin Kwon's answer)
final int[] arr = {1, 2, 3};
final PrimitiveIterator.OfInt i1 = Arrays.stream(arr).iterator();
final PrimitiveIterator.OfInt i2 = IntStream.of(arr).iterator();
final Iterator<Integer> i3 = IntSt...
How do I use a PriorityQueue?
... inserts an element if possible, otherwise returning
false. This differs from the Collection.add method, which can fail to
add an element only by throwing an unchecked exception. The offer
method is designed for use when failure is a normal, rather than
exceptional occurrence, for example, i...
.bashrc at ssh login
...iw Debian Jessie/8 already sources .bashrc out-of-the-box - but it does it from .profile, not .bash_profile.
– underscore_d
Oct 18 '15 at 14:06
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Identifying the dependency relationship for python packages installed with pip
...
An updated version of the script from my previous comment is pip freeze | grep -v "\-e" | sed s/\=\=.*// | awk 'system("pip show " $1)' | grep -E '^(Name:|Requires:)' | sed s/Name:/\\\nName:/ -- but it seems that pipdeptree is now a better solution.
...
What is the difference between 'classic' and 'integrated' pipeline mode in IIS7?
...e out the request to ASP.NET). In this mode, ASP.NET is not much different from PHP or other technologies for IIS.
Integrated mode, on the other hand, is a new mode in IIS7 where IIS pipeline is tightly integrated (i.e. is just the same) as ASP.NET request pipeline. ASP.NET can see every request it...
Do interfaces inherit from Object class in java
Do interfaces inherit from Object class in Java?
7 Answers
7
...
Android accelerometer accuracy (Inertial navigation)
... API yet, so bear with me.
First of all, traditionally, to get navigation from accelerometers you would need a 6-axis accelerometer. You need accelerations in X, Y, and Z, but also rotations Xr, Yr, and Zr. Without the rotation data, you don't have enough data to establish a vector unless you assum...
What does jQuery.fn mean?
...is just a constructor function, and all instances created with it, inherit from the constructor's prototype.
A simple constructor function:
function Test() {
this.a = 'a';
}
Test.prototype.b = 'b';
var test = new Test();
test.a; // "a", own property
test.b; // "b", inherited property
A simpl...
JavaScript query string [closed]
...
You can extract the key/value pairs from the location.search property, this property has the part of the URL that follows the ? symbol, including the ? symbol.
function getQueryString() {
var result = {}, queryString = location.search.slice(1),
re = /(...