Should I pass an object property into an object method?

Question

I'm trying to learn object-oriented javascript. Working with a simple method I want to do this:

var users = function(url){
    this.url = url;
    this.log = function(){
        console.log(this.url);
    }
}
var apiPoint = "https://www.zenconomy.se/api/admin/tracking?format=json"
var liveUsers = new users(apiPoint)
liveUsers.log()

However, I've learned that it's often a good idea to pass variables into functions when working with normal functions, in objects however, this seems a bit clunky.

var users = function(url){
    this.url = url;
    this.log = function(url){
        console.log(url);
    }
}
var apiPoint = "here is my url"
var liveUsers = new users(apiPoint)
liveUsers.log(liveUsers.url)

Both methods work. What are the pros and cons of the different approaches, assuming that users.log only ever need properties from inside the users-class.

Answer 1

you just mentioned you are trying to learn OOP in javascript, but actually, consider the log function in your user object, if there is no users instance, no log method eigther. That's not the same concept according to OO in C++ or C#. In my opinion, prototype will best describe the oop, do as following:

var users = function(url){
    this.url = url;
}
users.prototype.log = function(){
    console.log(this.url);
}

in this way, log will not be in any instance of users, it exists in __proto__ which is a reference of prototype in any instance. That means when you create instances, they share all the functions, same as C++ or C#. finally, you should never use the second sample in your post, that's not OO things.