Function isOperatorNode

src/utils/is.js:232–234

(x)

}

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

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