Function isFunctionNode

src/utils/is.js:216–218

(x)

}

export function isFunctionNode (x) {
  return (x && x.isFunctionNode === true && x.constructor.prototype.isNode === true) || false
}

export function isIndexNode (x) {
  return (x && x.isIndexNode === true && x.constructor.prototype.isNode === true) || false