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typeof for RegExp
...
You can use instanceof operator:
var t = /^foo(bar)?$/i;
alert(t instanceof RegExp);//returns true
In fact, that is almost the same as:
var t = /^foo(bar)?$/i;
alert(t.constructor == RegExp);//returns true
Keep in mind that as RegExp is not a primitive data type,...
What is the difference between os.path.basename() and os.path.dirname()?
...rname(path) function returns the head of the path.
E.g.: The dirname of '/foo/bar/item' is '/foo/bar'.
The os.path.basename(path) function returns the tail of the path.
E.g.: The basename of '/foo/bar/item' returns 'item'
From: http://docs.python.org/2/library/os.path.html#os.path.basename
...
Is JavaScript's “new” keyword considered harmful?
...ily mitigated - simply add a bit of code to the function itself:
function foo()
{
// if user accidentally omits the new keyword, this will
// silently correct the problem...
if ( !(this instanceof foo) )
return new foo();
// constructor logic follows...
}
Now you can have the ...
echo that outputs to stderr
...
Another option
echo foo >>/dev/stderr
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How do I override __getattr__ in Python without breaking the default behavior?
...ttributes in the instance that match the name. For instance, if you access foo.bar, then __getattr__ will only be called if foo has no attribute called bar. If the attribute is one you don't want to handle, raise AttributeError:
class Foo(object):
def __getattr__(self, name):
if some_pr...
shortcut for creating a Map from a List in groovy?
... then the method collectEntries should suffice. For example
def names = ['Foo', 'Bar']
def firstAlphabetVsName = names.collectEntries {[it.charAt(0), it]} // [F:Foo, B:Bar]
But if you want a structure similar to a Multimap, in which there are multiple values per key, then you'd want to use the gr...
Python loop that also accesses previous and next values
...
This should do the trick.
foo = somevalue
previous = next_ = None
l = len(objects)
for index, obj in enumerate(objects):
if obj == foo:
if index > 0:
previous = objects[index - 1]
if index < (l - 1):
n...
Cannot refer to a non-final variable inside an inner class defined in a different method
...s case you should look at encapsulating them within a class.
public class Foo {
private PriceObject priceObject;
private double lastPrice;
private double price;
public Foo(PriceObject priceObject) {
this.priceObject = priceObject;
}
public void tick() {
pri...
How to set up tmux so that it starts up with specified windows opened?
... you require:
#session1
new -s SessionName -n WindowName Command
neww -n foo/bar foo
splitw -v -p 50 -t 0 bar
selectw -t 1
selectp -t 0
This would open 2 windows, the second of which would be named foo/bar and would be split vertically in half (50%) with foo running above bar. Focus would be in...
SetUnhandledExceptionFilter and the C/C++ Runtime Library - C/C++ - 清泛网 - 专注IT技能提升
...ash!" << std::endl;
Bar();
}
virtual void Foo() = 0;
void Bar()
{
Foo();
}
};
struct D: public B
{
void Foo()
{
}
};
B* b = new D;
// Just to silence the warning C4...