Life is grand

Slash7 has posted the slides from their brilliant Javascript Boot Camp Tutorial talk at OSCON. 108 pages of pure JavaScript love. One thing I just learnt, on page 36, is that you can pass a function as an arguement into another function. That function can then call the arguement function. Sounds weird but that is pretty amazing if you ask me.

It is obvious when you think about it but functions are objects in JavaScript. So a function can have members. e.g.
var f = function()
{
    return 2;
}

f.g = function(x)
{
    return x + f();
}

If I ran f.g(5); I’d get back 7.