The "?:" (Ternary) Operator

8 points

In JavaScript, there exists a ternary (?:) operator. This serves as a shortcut to the if/else conditions. It's a very short operator, allowing only one line of code to be executed in the resulting code block; an alternative would be to make a call to a function but if you need to call more than 1 function for it, just use if/else. Without further ado, let's move on to syntax examples.

The syntax goes like this... condition ? one line true code : one line false code;

Some sample code comparison with if/else and ?:
if(2 > 1) alert('2 is more than 1'); else alert('2 is less than 1');
2>1 ? alert('2 is more than 1') : alert('2 is less than 1');
A shorter way to do the same operation (but more complex) is the following...
alert('2 is ' + (2>1?'more':'less') + ' than 1');

Helping example code can be found at Easily enable and disable this script in which it uses the ternary operator.