var vs this in Javascript object

Question

I\'m developing a web framework for node.js. here is the code;

function Router(request, response) {
        this.routes = {};

        var parse = require(         


        

Answer 1

You can think of properties hung from this sort of like instance variables in other languages (sort of).

It looks like you're creating a constructor function and will likely add some prototype methods. If that's the case, and you need access to routes, you've got it, but not path.

Router.prototype = {
  doSomething: function(){
    this.routes; // available
    path; // not available
  }
}