如何检查对象是否在JavaScript中具有属性？

const obj = { name: 'Tom', age: 18 };
console.log('name' in obj); // true
console.log('gender' in obj); // false

const obj = { name: 'Tom', age: 18 };
console.log(obj.hasOwnProperty('name')); // true
console.log(obj.hasOwnProperty('gender')); // false

const obj = { name: 'Tom', age: 18 };
console.log(Object.prototype.hasOwnProperty.call(obj, 'name')); // true
console.log(Object.prototype.hasOwnProperty.call(obj, 'gender')); // false