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... McMillen
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2
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setTimeout / clearTimeout problems
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edited May 25 '18 at 6:10
Ankur Soni
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Replace specific characters within strings
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With a regular expression and the function gsub():
group <- c("12357e", "12575e", "197e18", "e18947")
group
[1] "12357e" "12575e" "197e18" "e18947"
gsub("e", "", group)
[1] "12357" "12575" "19718" "18947"
What gsub does here is to replace each occurrence of "e" with an empty string "".
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MongoDB aggregation framework match OR
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edited Sep 14 '15 at 11:33
Balthazar
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How to check status of PostgreSQL server Mac OS X
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95
The simplest way to to check running processes:
ps auxwww | grep postgres
And look for a comm...
How can I tell who forked my repository on GitHub?
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answered Aug 31 '12 at 3:25
Matt BallMatt Ball
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Rails migrations: self.up and self.down versus change
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answered Apr 28 '12 at 16:54
Aldo 'xoen' GiambellucaAldo 'xoen' Giambelluca
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Rails Migration: Remove constraint
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answered Apr 15 '11 at 20:42
Paul SturgessPaul Sturgess
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How do I enable gzip compression when using MVC3 on IIS7?
...n mess up your "Vary:" host header. More info: stackoverflow.com/questions/5372052/…
– jjxtra
Dec 17 '13 at 23:33
2
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Using the Swift if let with logical AND operator &&
...apped optional meets the condition:
if let w = width as? Int where w < 500
{
println("success!")
}
For those now using Swift 3, "where" has been replaced by a comma. The equivalent would therefore be:
if let w = width as? Int, w < 500
{
println("success!")
}
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