JavaScript RegExp \r Metacharacter

The RegExp \r Metacharacter in JavaScript is used to find the carriage return character (Carriage return means to return to the beginning of the current line without advancing downward). If it is found it returns the position else it returns -1. 

Syntax: 

/\r/ 

or

new RegExp("\\r")

Example 1: This example searches for the carriage return character in the string. 

html

<h1 style="color:green">
    GeeksforGeeks
</h1>

<h2>RegExp \r Metacharacter</h2>

<p>Input String: GeeksforGeeks@_123_$</p>

<button onclick="geek()">
    Click it!
</button>

<p id="app"></p>

<script>
    function geek() {
        var str1 = "GeeksforGeeks@_123_$";
        var regex4 = /\r/;
        var match4 = str1.search(regex4);
        if(match4 == -1) {
            document.getElementById("app").innerHTML
            = "No carriage return character present. ";
        } else {
            document.getElementById("app").innerHTML
            = "Index of carriage return character: " + match4;
        }
    }
</script>

Output:

JavaScript RegExp \r Metacharacter

Example 2: This example searches the position of the carriage return character in the string. 

html

<h1 style="color:green">
    GeeksforGeeks
</h1>

<h2>RegExp \r Metacharacter</h2>

<p>String: 123ge\reky456</p>

<button onclick="geek()">
    Click it!
</button>

<p id="app"></p>

<script>
    function geek() {
        var str1 = "123ge\reky456";
        var regex4 = new RegExp("\\r");
        var match4 = str1.search(regex4);

        document.getElementById("app").innerHTML
        = " Index of carriage return character: "
        + match4;
    }
</script>

Output:

JavaScript RegExp \r Metacharacter

Supported Browsers: The browsers supported by RegExp \r Metacharacter are listed below:

• Google Chrome
• Apple Safari
• Mozilla Firefox
• Opera
• Internet Explorer

We have a complete list of Javascript RegExp expressions, to check those please go through this JavaScript RegExp Complete Reference article.

We have a Cheat Sheet on Javascript where we covered all the important topics of Javascript to check those please go through Javascript Cheat Sheet-A Basic guide to JavaScript.