How object equality checks work in Javascript? [duplicate]

问题

This question already has answers here:

Object comparison in JavaScript [duplicate] (10 answers)

How to determine equality for two JavaScript objects? (60 answers)

How to determine if Javascript array contains an object with an attribute that equals a given value? (23 answers)

indexOf method in an object array? (27 answers)

Closed last month.

I'm trying to check for the existence of an element of an array using built-in Javascript array function

const routes = [
  { path: 'users/:id', component: 1 },
  { path: 'users', component: 2 },
  { path: 'todos', component: 3 },
  { path: '', component: 4 }
];

console.log(routes.indexOf({ path: 'users', component: 2 }));
console.log(routes.indexOf(routes[1]));
console.log(routes[1] === { path: 'users', component: 2 });

But it is returning results that aren't useful for my objective at all:

-1
1
false

My actual objects are more complex than the example, but this is gives similar behavior

来源：https://stackoverflow.com/questions/59532726/how-object-equality-checks-work-in-javascript