ES2026

https://github.com/tc39/proposals/blob/main/finished-proposals.md

https://tc39.es/ecma262/#sec-code-realms

https://www.bilibili.com/video/BV1HAVv6NEjR/?spm_id_from=333.337.search-card.all.click&vd_source=47c9acd507be61251cd2bb730416395c

新提案

Map.getOrInsert()

Error.isError()

不通过原型链进行判断，避免出现跨Realm的判断失误问题