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Add only non-whitespace changes
I have my text editor to automatically trim trailing whitespace upon saving a file, and I am contributing to an open source project that has severe problems with trailing whitespace.
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Extract every nth element of a vector
...it can be used on a temporary; in order to use seq you have to be able to call length on the vector. letters[letters < 'm'][c(TRUE, FALSE, FALSE)]
– Matt Chambers
Sep 14 '17 at 21:07
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Read each line of txt file to new array element
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It's just easy as that:
$lines = explode("\n", file_get_contents('foo.txt'));
file_get_contents() - gets the whole file as string.
explode("\n") - will split the string with the delimiter "\n" - what is ASCII-LF escape for a newline.
But pay attention - check that the file has UNIX-Line...
Loading a properties file from Java package
...).getResourceAsStream("foo.properties");
prop.load(in);
in.close();
(Add all the necessary exception handling).
If your class is not in that package, you need to aquire the InputStream slightly differently:
InputStream in =
getClass().getResourceAsStream("/com/al/common/email/templates/foo.pro...
What is JavaScript garbage collection?
...ippert wrote a detailed blog post about this subject a while back (additionally comparing it to VBScript). More accurately, he wrote about JScript, which is Microsoft's own implementation of ECMAScript, although very similar to JavaScript. I would imagine that you can assume the vast majority of beh...
C# 4.0: Can I use a TimeSpan as an optional parameter with a default value?
...robably fine, but you might have an unintended side effect, or you might swallow an exceptional condition (for example, if the source of span is a property or variable that should not be null, but is).
I would therefore overload the method:
void Foo()
{
Foo(TimeSpan.FromSeconds(2.0));
}
void F...
jQuery - selecting elements from inside a element
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Actually, $('#id', this); would select #id at any descendant level, not just the immediate child. Try this instead:
$(this).children('#id');
or
$("#foo > #moo")
or
$("#foo > span")
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When should std::move be used on a function return value? [duplicate]
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In the case of return std::move(foo); the move is superfluous because of 12.8/32:
When the criteria for elision of a copy operation are met or would be
met save for the fact that the source object is a function parameter,
and the object to be copied...
python setup.py uninstall
I have installed a python package with python setup.py install .
16 Answers
16
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How to write a test which expects an Error to be thrown in Jasmine?
... not possible"));
you should be passing a function into the expect(...) call. Your incorrect code:
// incorrect:
expect(parser.parse(raw)).toThrow(new Error("Parsing is not possible"));
is trying to actually call parser.parse(raw) in an attempt to pass the result into expect(...),
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