Removing the script tags

/<script[^>]*>[\S\s]*?<\/script[^>]*>/ig

[^>] 指的是除了>的任何字元
[\S\s]是所有 unicode 字元的集合

[...]  Any one character between the brackets.
[^...] Any one character not between the brackets.
.      Any character except newline or another Unicode line terminator.
\w     Any ASCII word character. Equivalent to [a-zA-Z0-9_].
\W     Any character that is not an ASCII word character. Equivalent to  
       [^a-zA-Z0-9_].
\s     Any Unicode whitespace character.
\S     Any character that is not Unicode whitespace. Note that \w and \S are not the 
       same thing.
\d     Any ASCII digit. Equivalent to [0-9].
\D     Any character other than an ASCII digit. Equivalent to [^0-9].