npm报错[email protected]: [email protected]＜3 is no longer maintained and not recommended for usage due to the num

报错信息：[email protected]: [email protected]<3 is no longer maintained and not recommended for usage due to the num

翻译：

npm 警告：过时的 core-js @2.6.12；2.6.12版本以前的core-js都不再保留，请升级到[email protected]版本或者至少@2版本

解决方法：

npm install --save [email protected]^3