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Why does calling a function in the Node.js REPL with )( work?
....} as Object literals/initialisers rather than as a block.
var stmt = '{ "foo": "bar" }';
var expr = '(' + stmt + ')';
console.log(eval(expr)); // Object {foo: "bar"}
console.log(eval(stmt)); // SyntaxError: Unexpected token :
And, as leesei mentioned, this has been changed for 0.11.x, which wil...
What is the difference between an expression and a statement in Python?
...ression is something that can be reduced to a value, for example "1+3" or "foo = 1+3".
It's easy to check:
print foo = 1+3
If it doesn't work, it's a statement, if it does, it's an expression.
Another statement could be:
class Foo(Bar): pass
as it cannot be reduced to a value.
...
Start thread with member function
...clude <thread>
#include <iostream>
class bar {
public:
void foo() {
std::cout << "hello from member function" << std::endl;
}
};
int main()
{
std::thread t(&bar::foo, bar());
t.join();
}
EDIT:
Accounting your edit, you have to do it like this:
std::thre...
Creating an iframe with given HTML dynamically
...2/
var iframe = document.createElement('iframe');
var html = '<body>Foo</body>';
iframe.src = 'data:text/html;charset=utf-8,' + encodeURI(html);
document.body.appendChild(iframe);
console.log('iframe.contentWindow =', iframe.contentWindow);
Also this answer your question it's importan...
Why use Object.prototype.hasOwnProperty.call(myObj, prop) instead of myObj.hasOwnProperty(prop)?
...est for properties generally, e.g.
var o = document.getElementsByTagName('foo');
// false in most browsers, throws an error in IE 6, and probably 7 and 8
o.hasOwnProperty('bar');
// false in all browsers
('bar' in o);
// false (in all browsers? Do some throw errors?)
Object.prototype.hasOwnPrope...
Why #egg=foo when pip-installing from git repo
...-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f11835396%2fwhy-egg-foo-when-pip-installing-from-git-repo%23new-answer', 'question_page');
}
);
Post as a guest
...
How to make a valid Windows filename from an arbitrary string?
I've got a string like "Foo: Bar" that I want to use as a filename, but on Windows the ":" char isn't allowed in a filename.
...
See changes to a specific file using git
...ffs for each change).
In other words, if the file named bar was once named foo, then git log -p bar (without the --follow option) will only show the file's history up to the point where it was renamed -- it won't show the file's history when it was known as foo. Using git log --follow -p bar will sh...
How to enter a multi-line command
...inally, strings (in all varieties) may also extend beyond a single line:
'Foo
bar'
They include the line breaks within the string, then.
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foll...
Python function global variables?
...nc_B calls func_A. In this example, order does matter:
def a():
global foo
foo = 'A'
def b():
global foo
foo = 'B'
b()
a()
print foo
# prints 'A' because a() was the last function to modify 'foo'.
Note that global is only required to modify global objects. You can still access them fr...