Web 组件(JavaScript 本机)命名限制?

Web components (JavaScript native) naming limitations?

我知道 Web 组件命名有以下限制:

还有其他的吗?下划线、数字和其他符号呢?

这是 HTML 规范的完整规范:

有效的自定义元素名称是满足以下所有要求的字符名称序列:

name must match the PotentialCustomElementName production:

PotentialCustomElementName ::=
   [a-z] (PCENChar)* '-' (PCENChar)*
PCENChar ::=
   "-" | "." | [0-9] | "_" | [a-z] | #xB7 | [#xC0-#xD6] | 
   [#xD8-#xF6] | [#xF8-#x37D] | [#x37F-#x1FFF] | [#x200C-#x200D] | 
   [#x203F-#x2040] | [#x2070-#x218F] | [#x2C00-#x2FEF] |
   [#x3001-#xD7FF] | [#xF900-#xFDCF] | [#xFDF0-#xFFFD] | 
   [#x10000-#xEFFFF]

This uses the EBNF notation from the XML specification. [XML]

name must not be any of the following:

   annotation-xml
   color-profile
   font-face
   font-face-src
   font-face-uri
   font-face-format
   font-face-name
   missing-glyph

https://html.spec.whatwg.org/multipage/custom-elements.html#valid-custom-element-name