Object.keys và Object.getOwnPropertyNames

object,tipjs,function

Object.keys và Object.getOwnPropertyNames

Person = function(name){
    this.name = name || ''
}
Person.prototype.sayHello = function(){
    console.log('hello')
}
p = new Person('yangyang')
p.age = 18
Object.defineProperties(p, {
    age:{
        enumerable:false
    }
})
console.log(Object.keys(p)) // ["name"]
console.log(Object.getOwnPropertyNames(p))  // ["name", "age"]

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