let obj = {
name:"张三",
age:"32",
sex:"男"
}
console.log(obj.hasOwnProperty('age')) // true
console.log(obj.hasOwnProperty('hobby')) // false
微信扫一扫
let obj = {
name:"张三",
age:"32",
sex:"男"
}
console.log(obj.hasOwnProperty('age')) // true
console.log(obj.hasOwnProperty('hobby')) // false
相关推荐