Function getValueFromNode

docs/external/js/react-dom.development.js:1820–1834

(node)

  }

  function getValueFromNode(node) {
    var value = '';

    if (!node) {
      return value;
    }

    if (isCheckable(node)) {
      value = node.checked ? 'true' : 'false';
    } else {
      value = node.value;
    }

    return value;
  }

  function trackValueOnNode(node) {
    var valueField = isCheckable(node) ? 'checked' : 'value';