为什么 Infinity == Infinity == 1/0 是错误的？

Question

问题很简单：

Infinity == Infinity
>> true

Infinity == 1/0
>> true

Infinity == Infinity == 1/0
>> false

为什么最后评价是false？

Answer 1

因为Infinity == Infinity == 1/0基本上就是

(Infinity == Infinity) == 1/0

所以

(true) == 1/0

是false。

Answer 2

它看起来像下面这样..

var d = (2 == 2);
console.log(d) //true
console.log(d == 2); //[true == 2] false

comparison == return always boolean true or false[1 or 0]