normalizeHTML() — react Function Reference

Source Code

packages/react-dom-bindings/src/client/ReactDOMComponent.js lines 319–336

function normalizeHTML(parent: Element, html: string) {
  if (__DEV__) {
    // We could have created a separate document here to avoid
    // re-initializing custom elements if they exist. But this breaks
    // how <noscript> is being handled. So we use the same document.
    // See the discussion in https://github.com/facebook/react/pull/11157.
    const testElement =
      parent.namespaceURI === MATH_NAMESPACE ||
      parent.namespaceURI === SVG_NAMESPACE
        ? parent.ownerDocument.createElementNS(
            (parent.namespaceURI: any),
            parent.tagName,
          )
        : parent.ownerDocument.createElement(parent.tagName);
    testElement.innerHTML = html;
    return testElement.innerHTML;
  }
}