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Observer Design Pattern vs “Listeners”
It seems to me that the Observer design pattern as described in GOF is really the same thing as Listeners found in various toolkits. Is there a difference between the concepts, or are Listeners and Observers really the same thing.
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What's the equivalent for eclipse's ALT+UP/DOWN (move line) in Visual Studio?
...select a tag ? for example I have selected a div tag and I want to move up all child element , instead of selecting by mouse .
– Arash
Apr 17 '16 at 6:34
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C# short/long/int literal format?
... // uint
var ul = 1UL; // ulong
var l = 1L; // long
I think that's all... there are no literal specifiers for short/ushort/byte/sbyte
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How do I check whether a jQuery element is in the DOM?
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There is a pure-DOM way to do this, which is syntactically more readable, and I imagine very similar in terms of performance: document.contains($foo[0])
– Joel Cross
Dec 1 '15 at 10:16
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Mercurial for Beginners: The Definitive Practical Guide
...configure it to ignore files?
Ignore is configured in a normal text file called .hgignore in the root of your repository. Add it just like a normal file with:
hg add .hgignore
There are two syntax options available for file matching, glob and regexp. glob is unix-like filename expansion and rege...
NOW() function in PHP
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this may be nice, but does not answer the question at all, it is not easier nor faster to do it this way
– Asped
Nov 16 '14 at 14:11
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IndentationError: unindent does not match any outer indentation level
...paces mixed in with your tabs. Try doing a search & replace to replace all tabs with a few spaces.
Try this:
import sys
def Factorial(n): # return factorial
result = 1
for i in range (1,n):
result = result * i
print "factorial is ",result
return result
print Factorial...
What are the dark corners of Vim your mom never told you about? [closed]
...en copy it back again.
You obviously have to be on a system with sudo installed and have sudo rights.
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How do you discover model attributes in Rails?
... am finding it difficult to easily see what attributes/properties exist on all of my model classes since they are not explicitly defined in my class files.
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Double vs single quotes
I'm really new to Ruby and I'm trying to understand if there's a specific time when I should use "" vs '' .
8 Answers
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