如何比较js中对象的所有键？

const obj1 = { a: 1, b: 2, c: 3 };
const obj2 = { a: 1, b: 2, c: 3 };

const keys1 = Object.keys(obj1);
const keys2 = Object.keys(obj2);

if (keys1.length !== keys2.length) {
  console.log("键的数量不同");
} else {
  const isEqual = keys1.every(key => keys2.includes(key));
  console.log(isEqual ? "键相同" : "键不同");
}

const obj1 = { a: 1, b: 2, c: 3 };
const obj2 = { a: 1, b: 2, c: 3 };

let isEqual = true;

for (let key in obj1) {
  if (!obj2.hasOwnProperty(key)) {
    isEqual = false;
    break;
  }
}

console.log(isEqual ? "键相同" : "键不同");

const obj1 = { a: 1, b: 2, c: 3 };
const obj2 = { a: 1, b: 2, c: 3 };

const str1 = JSON.stringify(obj1);
const str2 = JSON.stringify(obj2);

console.log(str1 === str2 ? "键相同" : "键不同");