What are the differences between regular expressions for search and replacement in vim and those in programming languages ​​such as js?

Question

What are the differences between the regular expressions used to replace content in vim and those in other programming languages?
I only know that the first matched group in vim is \1, which is equivalent to $1 in js.

元字符 含义说明
.   匹配任意字符
\[abc\] 匹配放括号中的任意字符，也可以表示范围，例如[a-z0-9]
\[^abc\]    匹配除方括号中字符的任意其他字符
\d  匹配阿拉伯数字，等同于[0-9]
\D  匹配除阿拉伯数字之外的其他字符，等同于[^0-9]
\x  匹配十六进制数字，等同于[0-9A-Fa-f]
\X  匹配十六进制之外的任意字符，等同于[^0-9A-Fa-f]
\w  匹配单词字母，等同于[0-9A-Za-z_]
\W  匹配单词字母之外的任意字符，等同于[^0-9A-Za-z_]
\t  匹配<Tab\>字符
\s  匹配空白字符，等同于[ \t]
\S  匹配非空白字符，等同于[^ \t]
\*  匹配0-任意个
\+ 匹配1-任意个
\?  匹配0-1个
\{n,m\}    匹配n-m个
\{n,\} 匹配n-任意个
\{,m\} 匹配0-m个
&   匹配行尾
^   匹配行首
\<  匹配单词词首

Answer 1

:help pattern-overview
Or read the Chinese version of the document https://github.com/vimcn/vimcdoc/blob/master/doc/pattern.txt