FeatureFormViewModel

function updateFeature() {
  // Get the updated field values
  const attributes = formVM.getValues();
  // Call applyEdits on the feature layer
  layer.applyEdits({
    // Pass in the updated field values
    updateFeatures: [{ attributes }]
  });
}

view.on("click", function(event){
  // event is the event handle returned after the event fires.
  console.log(event.mapPoint);
});

// Listen for when 'submit' is called.
// Once it is fired, update the feature.
formVM.on("submit", updateFeature);

// When the DOM's button (btnUpdate) is clicked,
// Update attributes of the selected feature.
document.getElementById("btnUpdate").onclick = function() {
  // Fires feature form's submit event.
  formVM.submit();
}

// Validate a features attribute values against the layer's contingent values
featureForm.on("value-change", () => {
  const validations = featureForm.viewModel.validateContingencyConstraints(featureForm.getValues());
  !!validations.length ? console.log("found some validation errors: ", validations) : console.log("no errors found!");
});

// Listen for the submit event.
featureFormVM.on("submit", function(){
  if (editFeature) {
    // Grab updated attributes from the form.
    const updated = featureFormVM.getValues();

    // Loop through updated attributes and assign
    // the updated values to feature attributes.
    Object.keys(updated).forEach(function(name) {
      editFeature.attributes[name] = updated[name];
    });

    // Setup the applyEdits parameter with updates.
    const edits = {
      updateFeatures: [editFeature]
    };
    applyEdits(edits);
  }
});