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What are carriage return, linefeed, and form feed?
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Have a look at Wikipedia:
Systems based on ASCII or a compatible character set use either LF (Line feed, '\n', 0x0A, 10 in decimal) or CR (Carriage return, '\r', 0x0D, 13 in decimal) individually, or CR followed by LF (CR+LF, 0x0D 0x0A). These characters are ...
Can't use Swift classes inside Objective-C
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I spent about 4 hours trying to enable Swift in my Xcode Objective-C based project. My myproject-Swift.h file was created successfully, but my Xcode didn't see my Swift-classes. So, I decided to create a new Xcode Objc-based project and finally, I found the right answer! Hope this post will he...
View the Task's activity stack
...cts
realActivity=com.android.contacts/.ViewContactActivity
base=/system/app/Contacts.apk/system/app/Contacts.apk data=/data/data/com.android.contacts
labelRes=0x7f090012 icon=0x7f02006b theme=0x7f0e0004
stateNotNeeded=false componentSpecified=false isHomeActivity=fals...
What is Express.js?
...templating language (like EJS, Jade, and Dust.js).
You can then use a database like MongoDB with Mongoose (for modeling) to provide a backend for your Node.js application. Express.js basically helps you manage everything, from routes, to handling requests and views.
Redis is a key/value store -- c...
What are the differences between BDD frameworks for Java? [closed]
...icense (for me), comes with almost every test library and much more, good: based on RSpec and therefore compatible, eclipse plugins, maven integration, very active community
ginkgo4j, a BDD framework for Java also based on Ruby's RSpec but using Java lambda's (instead of annotations) to allow you to...
Conditional import of modules in Python
In my program I want to import simplejson or json based on whether the OS the user is on is Windows or Linux. I take the OS name as input from the user. Now, is it correct to do the following?
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How do I style a dropdown with only CSS?
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It is possible, but unfortunately mostly in WebKit-based browsers to the extent we, as developers, require. Here is the example of CSS styling gathered from Chrome options panel via built-in developer tools inspector, improved to match currently supported CSS properties in mo...
Separate Back Stack for each tab in Android using Fragments
... time I wanted to use Fragments.
So this is how I done it.
1. Create a base Fragment Class
public class BaseFragment extends Fragment {
AppMainTabActivity mActivity;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
mAct...
Converting from longitude\latitude to Cartesian coordinates
... because it is uses "Spherical Trigonometry" instead of a "Law of Cosines" based approach which is based on two-dimensional trigonometry, therefore you get a nice balance of accuracy over complexity.
A gentlemen by the name of Chris Veness has a great website at http://www.movable-type.co.uk/script...
.keyCode vs. .which
...he key). But note that IE doesn't support code, and its support for key is based on an older version of the spec so isn't quite correct. As I write this, the current Edge based on EdgeHTML and Chakra doesn't support code either, but Microsoft is rolling out its Blink- and V8- based replacement for E...