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Rails: how do I validate that something is a boolean?
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Luca Spiller
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answered Jan 18 '11 at 7:38
Drew Dara-AbramsDre...
Submitting the value of a disabled input field
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240
I wanna Disable an Input Field on a
form and when i submit the form the
values from the d...
How to build a query string for a URL in C#?
... in nvc.GetValues(key)
select string.Format(
"{0}={1}",
HttpUtility.UrlEncode(key),
HttpUtility.UrlEncode(value))
).ToArray();
return "?" + string.Join("&", array);
}
I imagine there's a super elegant way to do this in LIN...
Force add despite the .gitignore file
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edited Oct 21 '15 at 15:04
answered Nov 4 '11 at 8:12
Dan...
How to find the length of a string in R
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See ?nchar. For example:
> nchar("foo")
[1] 3
> set.seed(10)
> strn <- paste(sample(LETTERS, 10), collapse = "")
> strn
[1] "NHKPBEFTLY"
> nchar(strn)
[1] 10
share
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im...
Excluding directories in os.walk
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answered Nov 8 '13 at 13:10
unutbuunutbu
665k138138 gold badges14831483 silver badges14721472 bronze badges
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Bash conditionals: how to “and” expressions? (if [ ! -z $VAR && -e $VAR ])
...ypal singh
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10
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Using a BOOL property
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207
Apple simply recommends declaring an isX getter for stylistic purposes. It doesn't matter wheth...
How to round an average to 2 decimal places in PostgreSQL?
...For example:
regress=> SELECT to_char(float8 '3.1415927', 'FM999999999.00');
to_char
---------------
3.14
(1 row)
to_char will round numbers for you as part of formatting. The FM prefix tells to_char that you don't want any padding with leading spaces.
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What's the difference between := and = in Makefile?
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answered Feb 2 '11 at 20:40
Greg HewgillGreg Hewgill
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...