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What is the difference between a regular string and a verbatim string?
I have a trial version of Resharper and it always suggests that I switch regular strings to verbatim strings. What is the difference?
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Remove non-numeric characters (except periods and commas) from a string
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You could use preg_replace to swap out all non-numeric characters and the comma and period/full stop as follows:
$testString = '12.322,11T';
echo preg_replace('/[^0-9,.]+/', '', $testString);
The pattern can also be expressed as /[^\d,.]+/
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How can I list ALL DNS records?
... example, to reduce the size of the response).
An AXFR is a zone transfer and is likely what you want. However, these are typically restricted and not available unless you control the zone. You'll usually conduct a zone transfer directly from the authoritative server (the @ns1.google.com below) and...
Favicon not showing up in Google Chrome [duplicate]
...che. http://support.google.com/chrome/bin/answer.py?hl=en&answer=95582 And test another browser.
Some where able to get an updated favicon by adding an URL parameter: ?v=1 after the link href which changes the resource link and therefore loads the favicon without cache (thanks @Stanislav).
&l...
Fastest way to check if a string is JSON in PHP?
...ray. Valid JSON values may be objects, arrays, numbers, strings, booleans, and null.
– zzzzBov
May 8 '15 at 1:30
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Difference between passing array and array pointer into function in C
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First, some standardese:
6.7.5.3 Function declarators (including prototypes)
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7 A declaration of a parameter as ‘‘array of type’’ shall be adjusted to ‘‘qualified pointer to
type’’, where the type qualifiers (if any) a...
How to get complete month name from DateTime
...stead of DateTime.Now is a further simplification. No useless time portion and a bit faster.
– OrizG
Dec 12 '17 at 21:58
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How to declare a structure in a header that is to be used by multiple files in c?
...each source file needed it.
The right way is putting it in an header file, and include this header file whenever needed.
shall we open a new header file and declare the structure there and include that header in the func.c?
This is the solution I like more, because it makes the code highly modular. ...
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...
Safe (bounds-checked) array lookup in Swift, through optional bindings?
If I have an array in Swift, and try to access an index that is out of bounds, there is an unsurprising runtime error:
19 A...