Cannot find name 'describe'. Do you need to install type definitions for a test runner? Try `npm i --save-dev @types/jest` or `npm i --save-dev @types/mocha` and then add 'jest' or 'mocha' to the types field in your tsconfig.
ON products ((data-'createdAt'));，详情可参考新收录的资料
。关于这个话题，新收录的资料提供了深入分析
item.get("author"),
圖像來源，Getty Images，更多细节参见新收录的资料