Why does this evaluate to false?

Question

var x ={age:24};
var y = x;
var z ={age:24};
alert(y==(x==z));

Can’t work it out!

So if I ran this as separate statements. And y==x evaluates to true, and z==x evaluates to false. But I can’t figure out why!

Any help appreciated please!

Thx in advance peeps :-)

Answer 1

Objects in js are comparated by reference, then, them are equals ONLY if either refer to same object (eg. dont matter if either have same key/value pairs)

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Operators/Comparison_Operators

Answer 2

Ah! fantastically useful advice!