Firebase用户ID允许的字符 [英] Firebase User ID Allowed Characters

问题描述

我正在创建结合了两个Firebase用户ID(例如.

I am creating a key combining two Firebase user IDs, such as .

谁会知道组成Firebase用户ID的字符集?理想情况下，分隔符不应采用构成Firebase用户ID的可能字符集.

Would anyone know the character set of which Firebase User IDs are comprised of? Ideally, the delimiter should not be in the possible character set forming the Firebase user IDs.

(PS:正在计划使用下划线"_"或双下划线"__"作为分隔符).

(P.S.: Am planning on using underscore "_" or double underscore "__" as the delimiter).

推荐答案

根据我的经验，最新版本的Firebase遵循^[0-9a-zA-Z]{27}[0-9]$模式.

From my experience, the latest version of Firebase follows the ^[0-9a-zA-Z]{27}[0-9]$ pattern.

我不知道为什么末尾总是有一个数字，但这似乎是一致的.

I don't know why there's always a digit at the end, but that seems to be consistent.

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