jQuery Syntax Meaning

Question

Possible Duplicate:
How do you read this JavaScript code? (var1 ? var2:var3)
JS How to use the ?: (ternary) operator

I was looking at a website's code and found this:

$.body = $('body');    
$.scroll = ($.browser.mozilla || $.browser.msie) ? $('html') : $.body;

What is the second line saying? Looks like some sort of if statement

Thanks

It is the JavaScript ternary operator: http://stackoverflow.com/questions/1788917/javascript-ternary-operator — Justin Ethier, Jan 20 '12 at 21:11
Thanks for the link @JustinEthier - I didn't know what the term was called. — user906080, Jan 20 '12 at 21:17
@Chad - I was going to, but questions about the ternary operator seem to come up so frequently that this question will probably end up being closed... — Justin Ethier, Jan 20 '12 at 21:23
@user906080 - No worries, it's basically impossible to search for `?` unless you already know the operator by name... — Justin Ethier, Jan 20 '12 at 21:24

score 3 · Answer 1 · answered Jan 20 '12 at 21:13

3

If the browser is mozilla, or if the browser is msie, then select the html dom object, else, select the body.

var a = CONDITION ? IF_TRUE : IF_FALSE;

answered Jan 20 '12 at 21:13

Josh

score 3 · Answer 2 · answered Jan 20 '12 at 21:14

3

It could have also been written as (but most people would prefer the style that you posted):

if ($.browser.mozilla || $.browser.msie) {
    $.scroll = $('html');
} else {
    $.scroll = $.body;
}

answered Jan 20 '12 at 21:14

Kevin Le - Khnle

2 Answers2