title: How to get ko.observable() value
body: <p>I would like to process a ko.observable with a global function. Here is my viewModel:</p>
  
  <pre><code>function articleVM() {
  this.Id = ko.observable();
  this.Title = ko.observable();
  this.Status = ko.observable();
  this.Url = ko.pureComputed(function () {
      return Admin.Global.removeDiacritics(this.Title);
  }, this);}
  </code></pre>
  
  <p>where removeDiacritics is calling the .replace method on "Title".</p>
  
  <p>So "Title" is an observable, and "removeDiacritics" is waiting for a string. How can I get the Title value and pass it to the function?</p>