From http://www.w3schools.com (Copyright Refsnes Data)

JavaScript RegExp \n Character

RegExp Object Reference JavaScript RegExp Object

Definition and Usage

The \n character is used to find a newline character.

\n returns the position where the newline character was found. If no match is found, it returns -1.

Syntax

new RegExp("\n")

or simply:

/\n/

Example

Example

Search for a newline character in a string:

var str="Visit W3Schools.\nLearn Javascript.";
var patt1=/\n/;

The marked text below shows where the expression gets a match:

Visit W3Schools.\nLearn Javascript.

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RegExp Object Reference JavaScript RegExp Object

From http://www.w3schools.com (Copyright Refsnes Data)