babel.js

/**
 * A visitor which removes a property, because that's Babel wants you to do it.
 */
const RemoveClassPropertyVisitor = {
  ClassProperty(path) {
  	path.remove()
  }
}

/**
 * Convenience function for removing a property from the visited class.
 */
function removeProperty(path){
  path.traverse(RemoveClassPropertyVisitor)
}

/**
 * Returns the node's HTML as a string (as it is stored differently if the
 *    string uses quasi quotes instead of normal quotes)
 */
function getNodeHtmlString(node) {
  const nodeValue = node.value
  const type = nodeValue.type
  if (type == 'TemplateLiteral') {
    return nodeValue.quasis[0].value.raw
  } else if (type == 'TaggedTemplateExpression') {
    return nodeValue.quasi.quasis[0].value.raw
  } else if (type == 'StringLiteral') {
    return nodeValue.value
  }
  throw new Error(`HTML template value ${node.key.name} must be a TemplateLiteral\
    TaggedTemplateExpression, or StringLiteral (found ${type}).`)
}

/**
 * Returns the node's HTML as a string (as it is stored differently if the
 *    string uses quasi quotes instead of normal quotes)
 */
function getNodeObjectValue(node) {
  return node.value
}

module.exports = {
  getNodeHtmlString,
  getNodeObjectValue,
  removeProperty
}