JavaScript RegExp {X,} Quantifier

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. 

Javascript

function geek() {
    let str1 = "GeeksforGeeeks e@_123_$";
    let regex4 = /e{1,}/gi;
    let match4 = str1.match(regex4);

    console.log("Found " + match4.length
        + " matches: " + match4);
}
geek();

Output

Found 3 matches: ee,eee,e

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

Javascript

function geek() {
    let str1 = "ee@128GeeeeK";
    let regex4 = new RegExp("e{2,}", "gi");
    let replace = "$";
    let match4 = str1.replace(regex4, replace);
    console.log(" New string: " + match4);
}
geek();

Output

 New string: $@128G$K

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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