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Hexadecimal To Decimal in Shell Script
... perl:
$ perl -le 'print hex("FF");'
255
with printf :
$ printf "%d\n" 0xFF
255
with python:
$ python -c 'print(int("FF", 16))'
255
with ruby:
$ ruby -e 'p "FF".to_i(16)'
255
with node.js:
$ nodejs <<< "console.log(parseInt('FF', 16))"
255
with rhino:
$ rhino<<EOF
prin...
Rails :dependent => :destroy VS :dependent => :delete_all
...
202
The difference is with the callback.
The :delete_all is made directly in your application and ...
How to pass a user defined argument in scrapy spider
...
190
Spider arguments are passed in the crawl command using the -a option. For example:
scrapy crawl...
When to use f:viewAction / preRenderView versus PostConstruct?
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120
When should one use the f:viewAction or preRenderView event to initialize data for a page verse...
How can I save an image with PIL?
...
Abhishek kumar
10366 bronze badges
answered Jan 23 '13 at 3:42
mmgpmmgp
16.9k22 gold badges424...
How do I make a matrix from a list of vectors in R?
...
[8,] 8 1 2 3 4 5
[9,] 9 1 2 3 4 5
[10,] 10 1 2 3 4 5
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How to collapse all methods in Xcode?
...ode 6.1.1
– Cesare
Mar 17 '15 at 17:07
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Is there a way to zoom the Visual Studio text editor with a keyboard shortcut?
... |
edited Jun 22 '10 at 20:36
Michael Mrozek
141k2424 gold badges151151 silver badges159159 bronze badges
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Running multiple commands in one line in shell
... |
edited Apr 26 '14 at 1:06
answered Feb 27 '11 at 1:44
Ma...
What is the difference between .*? and .* regular expressions?
...difference between greedy and non-greedy quantifiers.
Consider the input 101000000000100.
Using 1.*1, * is greedy - it will match all the way to the end, and then backtrack until it can match 1, leaving you with 1010000000001.
.*? is non-greedy. * will match nothing, but then will try to match ext...
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