title: I'm seeing : used in code
body: <p>I'm seeing <code>:</code> used in JavaScript a good bit and I can not figure out what exactly what its doing. Is it naming something? For example is the function being named onSave? Example is below.</p>
  
  <pre><code> onSave: function() {
          var properties = this.getFormData(),
              request = this.wfsBody("usa", "usa:pecotest", "geom",                  
              properties);
              console.log(request);
              this.makeRequest(request);enter code here
  </code></pre>