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How do you echo a 4-digit Unicode character in Bash?
...d like to add the Unicode skull and crossbones to my shell prompt (specifically the 'SKULL AND CROSSBONES' (U+2620)), but I can't figure out the magic incantation to make echo spit it, or any other, 4-digit Unicode character. Two-digit one's are easy. For example, echo -e "\x55", .
...
What is the definition of “interface” in object oriented programming
... one of the more overloaded and confusing terms in development.
It is actually a concept of abstraction and encapsulation. For a given "box", it declares the "inputs" and "outputs" of that box. In the world of software, that usually means the operations that can be invoked on the box (along with ar...
JavaScript function similar to Python range()
...uple of additional defensive checks - ensure that the arguments passed are all coercible to numbers and ensure that stop is greater than start (and swap them if not).
– Russ Cam
Nov 25 '11 at 18:46
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How to import module when module name has a '-' dash or hyphen in it?
...appens with sys.modules, you don't need it to import itself), just getting all of the file's globals into your own scope, you can use execfile
# contents of foo-bar.py
baz = 'quux'
>>> execfile('foo-bar.py')
>>> baz
'quux'
>>>
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Use underscore inside Angular controllers
...derscore, it attaches itself to the window object, and so is available globally.
So you can use it from Angular code as-is.
You can also wrap it up in a service or a factory, if you'd like it to be injected:
var underscore = angular.module('underscore', []);
underscore.factory('_', ['$window', fu...
How to concatenate twice with the C preprocessor and expand a macro as in “arg ## _ ## MACRO”?
...ssing token (see below), is
replaced by the corresponding argument after all macros contained therein have been
expanded. Before being substituted, each argument’s preprocessing tokens are
completely macro replaced as if they formed the rest of the preprocessing file; no other
preprocessin...
I want to get the type of a variable at runtime
...that comparison return true, but it would require a few book chapters to really cover TypeTag, so I'll stop here.
Finally, maybe you don't care about the type of the variable at all. Maybe you just want to know what is the class of a value, in which case the answer is rather simple:
val x = 5
x.ge...
Create Directory When Writing To File In Node.js
...d found a little problem. I've got a script which resides in a directory called data . I want the script to write some data to a file in a subdirectory within the data subdirectory. However I am getting the following error:
...
How is AngularJS different from jQuery
... For several years, it was close to MVC. But now re factoring and api improvement, it is closer to MVVM. In Angular $scope,works like a VM (view Model).
– Invincible
Apr 18 '14 at 6:36
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How to Create a circular progressbar in Android which rotates on it?
... android:useLevel="true"><!-- this line fixes the issue for lollipop api 21 -->
<gradient
android:angle="0"
android:endColor="#007DD6"
android:startColor="#007DD6"
android:type="sweep"
android:useLevel="false" />
...