javascript - JavaScript 中数组和具有数字属性的对象相等吗？

Question

有人可以向我解释一下为什么以下内容是正确的:

let foo = { 
    A: [ 1, 2 ] 
}
let bar = {
   "A": {
      "0": "1",
      "1": "2"
   }
}
assert.deepEqual(foo, bar);

Answer 1

如the documentation说:

Only enumerable "own" properties are considered. The assert.deepEqual() implementation does not test the [[Prototype]] of objects or enumerable own Symbol properties. For such checks, consider using assert.deepStrictEqual() instead.

assert.deepStrictEqual()函数也会检查原型(prototype)，并且

assert.deepStrictEqual(foo, bar);

将返回 false。