我可以发现没有问题与您的脚本。这个非常简单的测试验证:

var a = "yes";
var b = "no2";
var c = true;
alert(c && (a == "yes" || b ==  no ));

检查obj的值。它是一个字符串?

我做了一个真值表的条件:

1 2 3 R
-------
0 X X 0
1 0 0 0
1 1 X 1
1 X 1 1

这解决了1 & &(2 | | 3),所以别的东西是错误的。

You code is written correctly but it may be there are error in data you compare with so please trace the data and then check that it execute the condition correctly you can trace using alert(data);