$ gnpm install @babel/plugin-syntax-optional-chaining
Allow parsing of optional properties
See our website @babel/plugin-syntax-optional-chaining for more information.
Using npm:
npm install --save-dev @babel/plugin-syntax-optional-chaining
or using yarn:
yarn add @babel/plugin-syntax-optional-chaining --dev
Copyright 2013 - present © cnpmjs.org | Home |