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Getting “Warning! PATH is not properly set up” when doing rvm use 2.0.0 --default
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edited Oct 15 '16 at 10:43
Arslan Ali
15.7k77 gold badges4545 silver badges6363 bronze badges
answer...
rails simple_form - hidden field - create?
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310
try this
= f.input :title, :as => :hidden, :input_html => { :value => "some value" }
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cancelling queued performSelector:afterDelay calls
...lector
[self performSelector:@selector(mySel:) withObject:nil afterDelay:5.0];
// cancel the above call (and any others on self)
[NSObject cancelPreviousPerformRequestsWithTarget:self];
See apple docs, it's right at the end of the performSelector:withObject:afterDelay: description.
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Make a div fill the height of the remaining screen space
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2015 update: the flexbox approach
There are two other answers briefly mentioning flexbox; however, that was more than two years ago, and they don't provide any examples. The specification for flexbox has definitely settled no...
How to use SCNetworkReachability in Swift
...dit history if somebody needs it.)
This is how you would do it in Swift 2.0 (Xcode 7):
import SystemConfiguration
func connectedToNetwork() -> Bool {
var zeroAddress = sockaddr_in()
zeroAddress.sin_len = UInt8(sizeofValue(zeroAddress))
zeroAddress.sin_family = sa_family_t(AF_INET)...
Select between two dates with Django
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suhailvs
13.3k77 gold badges7070 silver badges8585 bronze badges
answered Oct 18 '10 at 20:46
Daniel RosemanDaniel Roseman
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Select first occurring element after another element
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207
#many .more.selectors h4 + p { ... }
This is called the adjacent sibling selector.
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How to run multiple DOS commands in parallel?
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Bali CBali C
27.1k3434 gold badges107107 silver badges143143 bronze badges
16
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JavaScript chop/slice/trim off last character in string
I have a string, 12345.00 , and I would like it to return 12345.0 .
25 Answers
25
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Most efficient way to concatenate strings in JavaScript?
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edited Apr 24 '18 at 9:20
answered May 22 '13 at 16:16
Ja...