Function pushStartOption

packages/react-dom-bindings/src/server/ReactFizzConfigDOM.js:2131–2230

(
  target: Array<Chunk | PrecomputedChunk>,
  props: Object,
  formatContext: FormatContext,
)

const selectedMarkerAttribute = stringToPrecomputedChunk(' selected=""');

function pushStartOption(
  target: Array<Chunk | PrecomputedChunk>,
  props: Object,
  formatContext: FormatContext,
): ReactNodeList {
  const selectedValue = formatContext.selectedValue;

  target.push(startChunkForTag('option'));

  let children = null;
  let value = null;
  let selected = null;
  let innerHTML = null;
  for (const propKey in props) {
    if (hasOwnProperty.call(props, propKey)) {
      const propValue = props[propKey];
      if (propValue == null) {
        continue;
      }
      switch (propKey) {
        case 'children':
          children = propValue;
          break;
        case 'selected':
          // ignore
          selected = propValue;
          if (__DEV__) {
            // TODO: Remove support for `selected` in <option>.
            if (!didWarnSelectedSetOnOption) {
              console.error(
                'Use the `defaultValue` or `value` props on <select> instead of ' +
                  'setting `selected` on <option>.',
              );
              didWarnSelectedSetOnOption = true;
            }
          }
          break;
        case 'dangerouslySetInnerHTML':
          innerHTML = propValue;
          break;
        case 'value':
          value = propValue;
        // We intentionally fallthrough to also set the attribute on the node.
        default:
          pushAttribute(target, propKey, propValue);
          break;
      }
    }
  }

  if (selectedValue != null) {
    let stringValue;
    if (value !== null) {
      if (__DEV__) {
        checkAttributeStringCoercion(value, 'value');
      }
      stringValue = '' + value;
    } else {