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Where are the PostgreSQL logs on macOS?
...
SELECT
*
FROM
pg_settings
WHERE
category IN( 'Reporting and Logging / Where to Log' , 'File Locations')
ORDER BY
category,
name;
In my case, it's in "/Library/PostgreSQL/8.4/data/pg_log"
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Where are an UIWebView's cookies stored?
...{
NSLog(@"%@", cookie);
}
Several methods are available for filtering and manipulation. Take a look at the NSHTTPCookieStorage documentation for accessing cookies, and the NSHTTPCookie documentation for accessing individual cookie properties.
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How can I check a C# variable is an empty string “” or null? [duplicate]
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Very simple and useful. I wish PHP could have something like this
– Andrew Liu
Dec 17 '15 at 5:23
6
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Omit rows containing specific column of NA
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You could use the complete.cases function and put it into a function thusly:
DF <- data.frame(x = c(1, 2, 3), y = c(0, 10, NA), z=c(NA, 33, 22))
completeFun <- function(data, desiredCols) {
completeVec <- complete.cases(data[, desiredCols])
return(data...
PHP regular expressions: No ending delimiter '^' found in
...n addition, if you're just validating, you don't need the capturing group, and can simplify the regex to /^\d+$/.
Example: http://ideone.com/Ec3zh
See also: PHP - Delimiters
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How can I get the current language in Django?
...) translation, it's in request.LANGUAGE_CODE."
– Alexander Marquardt
Dec 1 '10 at 18:10
4
That li...
Create an empty data.frame
...hout any rows. Basically, I want to specify the data types for each column and name them, but not have any rows created as a result.
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Python function as a function argument?
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Here's another way using *args (and also optionally), **kwargs:
def a(x, y):
print x, y
def b(other, function, *args, **kwargs):
function(*args, **kwargs)
print other
b('world', a, 'hello', 'dude')
Output
hello dude
world
Note that function, *...
How do I convert struct System.Byte byte[] to a System.IO.Stream object in C#?
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This is the best answer. It's concise and covers all the practical applications. There's a gotcha with just using the byte array based constructor as indicated here--the resulting stream is not re-sizable.
– Jduv
Jul 19 '12 ...
What is the syntax for a default constructor for a generic class?
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And if you need the Type as a property:
public class Cell<T>
{
public Cell()
{
TheType = typeof(T);
}
public Type TheType { get;}
}
...