Function updateValueIfChanged

code/new-context-api/public/app.js:3180–3199

(node)

}

function updateValueIfChanged(node) {
  if (!node) {
    return false;
  }

  var tracker = getTracker(node);
  // if there is no tracker at this point it's unlikely
  // that trying again will succeed
  if (!tracker) {
    return true;
  }

  var lastValue = tracker.getValue();
  var nextValue = getValueFromNode(node);
  if (nextValue !== lastValue) {
    tracker.setValue(nextValue);
    return true;
  }
  return false;
}

var ReactInternals = React.__SECRET_INTERNALS_DO_NOT_USE_OR_YOU_WILL_BE_FIRED;