wiki/content/20201110094807-javascript_regexp_s_flag.md

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---
date: 2020-11-10
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
```