message: docs: add comment about newEvent utility function
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diff: @@ -206,6 +206,7 @@ function heroModuleSetup() {
  nameInput.value = 'quick BROWN fOx';
  // dispatch a DOM event so that Angular learns of input value change.
  + // use newEvent utility function (not provided by Angular) for better browser compatibility
  nameInput.dispatchEvent(newEvent('input'));
  // Tell Angular to update the display binding through the title pipe
  