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JavaScript RegExp {X,} Quantifier

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The RegExp m{X, } Quantifier in JavaScript is used to find the match of any string that contains a sequence of m, at least X times, where X is a number. 

Syntax: 

/m{X, }/ 

or

new RegExp("m{X, }")

Syntax with modifiers:

/\m{X, }/g 

or

new RegExp("m{X, }", "g")

Example 1: This example matches the presence of the character ‘e’ at least 1 times in the whole string. 

html




<!DOCTYPE html>
<html lang="en">
 
<head>
    <title>
        JavaScript RegExp {X,} Quantifier
    </title>
</head>
 
<body>
    <h1 style="color:green">GeeksforGeeks</h1>
 
    <h2>RegExp {X,} Quantifier</h2>
 
    <p>Input String: GeeksforGeeeks e@_123_$</p>
 
    <button onclick="geek()">Click it!</button>
 
    <p id="app"></p>
 
    <script>
        function geek() {
            let str1 = "GeeksforGeeeks e@_123_$";
            let regex4 = /e{1,}/gi;
            let match4 = str1.match(regex4);
 
            document.getElementById("app").innerHTML
                = "Found " + match4.length
                + " matches: " + match4;
        }
    </script>
</body>
</html>

Output: 

JavaScript RegExp {X,} Quantifier

JavaScript RegExp {X,} Quantifier

Example 2: This example replaces the word containing atleast 2 ‘e’ with ‘$’ character. 

html




<!DOCTYPE html>
<html lang="en">
 
<head>
    <title>
        JavaScript RegExp {X,} Quantifier
    </title>
</head>
 
<body>
    <h1 style="color:green">GeeksforGeeks</h1>
 
    <h2>RegExp {X,} Quantifier</h2>
 
    <p>String: ee@128GeeeeK</p>
 
    <button onclick="geek()">Click it!</button>
 
    <p id="app"></p>
 
    <script>
        function geek() {
            let str1 = "ee@128GeeeeK";
            let regex4 = new RegExp("e{2,}", "gi");
            let replace = "$";
            let match4 = str1.replace(regex4, replace);
            document.getElementById("app").innerHTML =
                " New string: " + match4;
        }
    </script>
</body>
</html>

Output:

JavaScript RegExp {X,} Quantifier

JavaScript RegExp {X,} Quantifier

Supported Browsers: The browsers supported by RegExp {X, } Quantifier 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.  


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Last Updated : 22 May, 2023
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