[рони]

elrut,

function bouncer(arr) {
    function isBigEnough(value) {
        if (value !== undefined && value !== null && value !==0 && value !== "" && !isNaN(value) && value !== false) {
            return true;
        };
       return false;
    }
    var b = arr.filter(isBigEnough);
    return b;
}

itog = bouncer([false, null, 0, NaN, undefined, "",78]);
alert(JSON.stringify(itog));