hydrateText() — react Function Reference

Source Code

packages/react-dom-bindings/src/client/ReactDOMComponent.js lines 3333–3379

export function hydrateText(
  textNode: Text,
  text: string,
  parentProps: null | Object,
): boolean {
  const isDifferent = textNode.nodeValue !== text;
  if (
    isDifferent &&
    (parentProps === null || parentProps.suppressHydrationWarning !== true) &&
    !checkForUnmatchedText(textNode.nodeValue, text)
  ) {
    return false;
  }
  return true;
}

export function diffHydratedText(textNode: Text, text: string): null | string {
  if (textNode.nodeValue === text) {
    return null;
  }
  const normalizedClientText = normalizeMarkupForTextOrAttribute(text);
  const normalizedServerText = normalizeMarkupForTextOrAttribute(
    textNode.nodeValue,
  );
  if (normalizedServerText === normalizedClientText) {
    return null;
  }
  return textNode.nodeValue;
}

export function restoreControlledState(
  domElement: Element,
  tag: string,
  props: Object,
): void {
  switch (tag) {
    case 'input':
      restoreControlledInputState(domElement, props);
      return;
    case 'textarea':
      restoreControlledTextareaState(domElement, props);
      return;
    case 'select':
      restoreControlledSelectState(domElement, props);
      return;
  }
}