Operator "?" in javascript?

Question

JavaScript

I'm trying to figure out the jquery.address library.
The documentation there is lame on both legs, so I smoke the source code of the examples.

And there often comes across an operator (is it an operator?) in the form of a question mark, which I hear about for the first time. For example:

result.push(i + ': ' + (typeof val == 'object'? val.join? '\'' + val.join(', ') + '\'': serialize(val) : '\'' + val + '\''));

var match = links.length? links.shift() + ' ' + links.join('.'): 'Home';

Etc. Source: www.asual.com/jquery/address/samples/api/

What does this operator do?

And, taking the opportunity, do you know of any alternative ajax addressing tools? Or at least on what request to look for them?

Answer 1

Well guys. Ternary operator is.