javascript - 两个javascript对象如何同时相等和不相等？

Question

下面是一个比较两个 JavaScript 对象的示例，但我对返回值感到困惑。

var i=new Object()
var j=new Object()

i==j假的

i!=j是的

i>=j是的

i<=j是的

i>j假的

i<j假的

如何确定上述值？我无法理解。

Answer 1

这是原因，

i==j false //Since both are referring two different objects

i!=j True  //Since both are referring two different objects

i>=j true  //For this, the both objects will be converted to primitive first,
           //so i.ToPrimitive() >= j.ToPrimitive() which will be 
           //evaluated to "[object Object]" >= "[object Object]" 
           //That is why result here is true.

i<=j true  //Similar to >= case

i>j false  //Similar to >= case

i<j false  //Similar to >= case

i<-j false //similar to >= case but before comparing "[object object]" will be negated 
           //and will become NaN. Comparing anything with NaN will be false 
           //as per the abstract equality comparison algorithm 

你提到了 i<-j将被评估为 true .但这是错误的，它将被评估为 false .请参阅上述原因。