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How to replace a character by a newline in Vim
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In the syntax s/foo/bar, \r and \n have different meanings, depending on context.
Short:
For foo:
\r == "carriage return" (CR / ^M)
\n == matches "line feed" (LF) on Linux/Mac, and CRLF on Windows
For bar:
\r == produces LF on Linux/Mac, CR...
How to add test coverage to a private constructor?
...tion, InvocationTargetException, InstantiationException {
Constructor<Foo> constructor = Foo.class.getDeclaredConstructor();
assertTrue(Modifier.isPrivate(constructor.getModifiers()));
constructor.setAccessible(true);
constructor.newInstance();
}
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How do I use the lines of a file as arguments of a command?
Say, I have a file foo.txt specifying N arguments
10 Answers
10
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How to initialize all members of an array to the same value?
...designated initialisers. If you statically initialise 65536 ints, like int foo1 = 1, foo2 = 1, ..., foo65536 =1; you will get the same size increase.
– qrdl
Mar 29 '13 at 20:48
28
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What's the best mock framework for Java? [closed]
... class ExpecationsTest {
private MyClass obj;
@Test
public void testFoo() {
new Expectations(true) {
MyClass c;
{
obj = c;
invokeReturning(c.getFoo("foo", false), "bas");
}
};
assert "bas".equals(obj.getFoo("foo", false));
Expectations.asser...
How do you rename a MongoDB database?
...llection" is a namespace transformation, essentially your collection named foo within the bar database has a namespace of bar.foo. The index on _id thus has the namespace bar.foo._id_. Renaming the collection (should) perform a prefix search and replace on all namespaces it is aware of, similar to...
Javascript Array Concat not working. Why?
...n Dinev:
.concat() doesn't add to current object, so this will not work:
foo.bar.concat(otherArray);
This will:
foo.bar = foo.bar.concat(otherArray);
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`if __name__ == '__main__'` equivalent in Ruby
...y a good, clean way of doing this.
EDIT: Found it.
if __FILE__ == $0
foo()
bar()
end
But it's definitely not common.
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SQL NVARCHAR and VARCHAR Limits
... it will be typed as nvarchar(n) where n is the length of the string. So N'Foo' will be treated as nvarchar(3) for example. If the string is longer than 4,000 characters it will be treated as nvarchar(max)
If you don't use the N prefix and the string is <= 8,000 characters long it will be typed a...
How do I detect whether a Python variable is a function?
... @bobince, how about this usecase: I want to write a decorator @foo that I can use both as @foo and as @foo(some_parameter). It then needs to check what it is being called with, e.g. the function to decorate (first case) or the parameter (the second case, in which it needs to return a fur...