--- id: 8bf1886a-0754-467f-a441-cb21bccfbd46 title: JavaScript RegExp /s flag --- # Introduction The dot (.) in regular expressions doesn't match line terminator characters: ``` javascript console.log(/%.$/.test('\n')) // false ``` The `/s` expression (dotAll) flag fixes this. # Syntax ``` javascript console.log(/^.$/s.test("\n")); // true ```