Reduce multiple ORs in IF statement in JavaScript

Question

Is there a simpler way to rewrite the following condition in JavaScript?

if ((x == 1) || (x == 3) || (x == 4) || (x == 17) || (x == 80)) {...}

Answer 1

many options

if ([0, 1, 3, 4, 17, 80].indexOf(x) > 0)

if(/^(1|3|4|17|80)$/.test(x))

if($.inArray(x, [1, 3, 4, 17, 80]) 

another one, based on Ed's answer

function list() {
    for (var i = 0, o = {}; i < arguments.length; i++)
        o[arguments[i]] = '';
    return o;
}


if(x in list(1, 3, 4, 17, 80))...