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PHP - Get bool to echo false when false
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answered Feb 9 '11 at 18:05
Dan GrossmanDan Grossman
48.1k1010 gold badges100100 silver badges9494 bronze badges
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Rails :dependent => :destroy VS :dependent => :delete_all
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202
The difference is with the callback.
The :delete_all is made directly in your application and ...
What is the relationship between UIView's setNeedsLayout, layoutIfNeeded and layoutSubviews?
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104
I'm still trying to figure this out myself, so take this with some skepticism and forgive me if...
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...
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 to pass a user defined argument in scrapy spider
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190
Spider arguments are passed in the crawl command using the -a option. For example:
scrapy crawl...
mysql - how many columns is too many?
I'm setting up a table that might have upwards of 70 columns. I'm now thinking about splitting it up as some of the data in the columns won't be needed every time the table is accessed. Then again, if I do this I'm left with having to use joins.
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How can I save an image with PIL?
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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?
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[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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