javascript - "dangerous use of the global this object" warning in Google Closure Compiler

Question

I have some code that looks like this:

var MyObject = function () {
  this.Prop1 = "";
  this.Prop2 = [];
  this.Prop3 = {};
  this.Prop4 = 0;
}

And then I later have this:

var SomeObject = new MyObject();

When I run my code through closure compiler in advanced mode, I'm getting the warning dangerous use of the global this object on every line where I have this.Prop =

What am I doing that's "dangerous" and how should I rewrite my code?

Thanks for your suggestions.

Answer 1

I would recommend writing it like this:

function MyObject() {
  this.Prop1 = "";
  this.Prop2 = [];
  this.Prop3 = {};
  this.Prop4 = 0;
}

However, the real fix is to use the @constructor JSDoc notation on the line before the constructor:

/** @constructor */