Question

How can a global object be programmed to be treated as a function and a object? Just like jQuery does (if I am correct?)

For example:

 X.foo = '';

and

 X('bar');

Answer 1

You simply define X and X.foo as you normally would, like this:

var X = function(a)
{
    return a * 2;
}
X.foo = function(a)
{
    return a + 1;
}

console.log(X(10));
console.log(X.foo(10));

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