I am trying to match this text with regexp but getting error

string : ----------------Page (0) Break----------------
(it can have any number inside parenthesis)

pattern : /?<=-{16}Page ()(\d+)(?=) Break-{16})/g

usage :

if(line.search( /?<=-{16}Page ()(\d+)(?=) Break-{16})/g )!=-1)
{
console.log(line);
}

error : SyntaxError: Invalid regular expression: /?<=-{16}Page ()(\d+)(?=) Break-{16})/: Nothing to repeat

Any help would be appreciated.
Thank You

Comments

[Médéric Burlet]

Please read the markdown guide to format your post properly and make it readable thanks!

[srknhcgl]

-{16}Page ((\d+)) Break-{16}
if you just want to extract number inside parenthesis, use (\d+)
please check on a tool like regexr.com/