Method getObjectProperty

src/expression/node/IndexNode.js:162–164

* Returns the property name if IndexNode contains a property. * If not, returns null. * @return {string | null}

()

     * @return {string | null}
     */
    getObjectProperty () {
      return this.isObjectProperty() ? this.dimensions[0].value : null
    }

    /**
     * Get string representation