RegExp /s Flag
Example
let text = "Line\nLine.";
let pattern = /Line./gs;
let result = text.match(pattern);
Try it Yourself »
Description
The /s (dotAll) flag allows the . (dot) metacharacter to match any character, including line terminators (\n, \r, \u2028, \u2029).
Without /s, \n does not match line terminators.
Syntax
new RegExp("regexp", "s")
or simply:
/regexp/s
See Also:
The Corresponding Property: dotAll
Regular Expression Search Methods
In JavaScript, a regular expression text search, can be done with different methods.
With a pattern as a regular expression, these are the most common methods:
String Methods
| match(pattern) | An Array of results |
| matchAll(pattern) | An Iterator of results |
| replace(pattern, rep) | A new String |
| search(pattern) | Index of the first match |
| split(pattern) | An Array of results |
RegExp Methods
| pattern.exec() | An Iterator of results |
| pattern.test() | true or false |
Browser Support
/regexp/s is a JavaScript 2018 feature.
ES 2018 is supported in all modern browsers since June 2020:
| Chrome 63 | Edge 79 | Firefox 78 | Safari 12 | Opera 50 |
| Des 2017 | Jan 2020 | Jun 2020 | Sep 2018 | Jan 2018 |
