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JavaScript RegExp . Metacharacter

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The RegExp . Metacharacter in JavaScript is used to search single characters, except line terminator or newline. 

Syntax: 

/regexp./ 

or

new RegExp("regexp.")

Syntax with modifiers:

/regexp./g 

or

new RegExp("regexp.", "g")

Example 1: This example searches the words whose starting character is “A” and ending character is “C” with only one character in between them. 

Javascript

function geek() {
    let str1 = "ABC, A3C, A C, AXXCC!";
    let regex4 = /A.C/g;
    let match4 = str1.match(regex4);
 
    console.log("Found " + match4.length
        + " matches: " + match4);
}
geek();

                    

Output
Found 3 matches: ABC,A3C,A C

Example 2: This example searches the words having “a” as starting letter and “c” as ending the letter with only one character in between. 

Javascript

function geek() {
    let str1 = "ABC, A3X, a x, AXXCC!";
    let regex4 = new RegExp("a.x", "g");
    let match4 = str1.match(regex4);
 
    console.log("Found " + match4.length
        + " matches: " + match4);
}
geek();

                    

Output
Found 1 matches: a x

 Supported Browsers: The browsers supported by RegExp . 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.  



Last Updated : 30 May, 2023
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