I am in the process of sealing an object property.
My question is, if I use Object.seal(personObject), the specific object gets sealed and does not allow any configuration or extensions. However, when I do not mention it on personObject_2, it still allows extension or configuration.
Is there a way to apply this seal to prototypes? In other words, any class of type person should have to adhere to this seal. Is achieving such behavior possible?
"use strict";
var personModule=(function (module) {
var person=function (fname,lname) {
Object.defineProperty(this,'firstName',{
get:function () {
return fname;
}
,set:function (newValue) {
fname=newValue;
},
configurable:true
});
Object.defineProperty(this,'lastName',{
get:function () {
return lname;
}
,set:function (newValue) {
lname=newValue;
},
configurable:true
});
Object.defineProperty(this,'fullName',{
get:function () {
return fname+lname;
},
configurable:true
});
}
module.person=person;
return module;
})(personModule || {});
var personObject=new personModule.person( "Raju","Rani");
console.log(personObject.fullName);
Object.seal(personObject);
//delete personObject.firstName;-->It throws error here
var personObject2=new personModule.person( "Shiva","Kumar");
delete personObject2.firstName;
console.log(personObject2.firstName);Thanks