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Test if characters are in a string
...try to match on an invalid regex, it doesn't work:
> grep("[", "abc[")
Error in grep("[", "abc[") :
invalid regular expression '[', reason 'Missing ']''
To do a true substring test, use fixed = TRUE.
> grep("[", "abc[", fixed = TRUE)
[1] 1
If you do want regex, great, but that's not w...
Get the current script file name
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edited Sep 30 '16 at 13:05
answered Oct 31 '12 at 12:29
S...
How to write a test which expects an Error to be thrown in Jasmine?
...m trying to write a test for the Jasmine Test Framework which expects an error. At the moment I'm using a Jasmine Node.js integration from GitHub .
...
How can I use “sizeof” in a preprocessor macro?
...of(someThing) equals PAGE_SIZE; otherwise they will produce a compile-time error.
1. C11 way
Starting with C11 you can use static_assert (requires #include <assert.h>).
Usage:
static_assert(sizeof(someThing) == PAGE_SIZE, "Data structure doesn't match page size");
2. Custom macro
If you...
How to cast List to List
... object, that isn't a customer, as a customer, and you would get a runtime error at one point, either form inside the list, or from the assignment.
Generics, however, is supposed to give you type-safe data types, like collections, and since they like to throw the word 'guaranteed' around, this sort...
Double vs. BigDecimal?
...re that it is arbitrary precision and that humans are used to the rounding errors you get in base 10.
– procrastinate_later
Aug 21 '13 at 15:59
3
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Regex to validate password strength
...n results.map { nsString.substringWithRange($0.range)}
} catch let error as NSError {
print("invalid regex: \(error.localizedDescription)")
return []
}
}
}
share
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Swift - Convert to absolute value
... understand why abs(Int8.min) can't work and therefore creates an overflow error.
– Imanou Petit
May 16 '18 at 11:47
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When should iteritems() be used instead of items()?
Is it legitimate to use items() instead of iteritems() in all places? Why was iteritems() removed from Python 3? Seems like a terrific and useful method. What's the reasoning behind it?
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Terminating a script in PowerShell
...ing for a way to terminate a PowerShell (PS1) script when an unrecoverable error occurs within a function. For example:
10 ...