How to Remove Punctuation from Text using JavaScript ?

In this article, we will learn how to remove punctuation from text using JavaScript. Given a string, remove the punctuation from the string if the given character is a punctuation character, as classified by the current C locale. The default C locale classifies these characters as punctuation:

! " # $ % & ' ( ) * + , - . / : ; ? @ [ \ ] ^ _ ` { | } ~ 

Examples:

Input : %welcome' to @geeksforgeek<s
Output : welcome to geeksforgeeks

Below are the following approaches through which we can remove punctuation from text using JavaScript:

• Using replace() Method with Regular Expression
• Using for Loop

Approach 1: Using replace() Method with Regular Expression

In this approach, we will use the replace() method with a regular expression and replace punctuations with an empty string.

Example:

Javascript

function remove(str) {
    return str.replace(/[!"#$%&'()*+,-./:;<=>?@[\]^_`{|}~]/g, '');
}
let str = "Welcome, to the geeksforgeeks!!!";
console.log(remove(str));

Output

Welcome to the geeksforgeeks

Approach 2: Using for loop

In this approach we will use for loop to iterate over the string and make the function for checking the punctuation. If the character is punctuation marks then it will not add in result variable and if it is not then we concat it to the result variable.

Javascript

function remove(str) {
    let res = '';
    for (let i = 0; i < str.length; i++) {
        let character = str.charAt(i);
        if (!checkPunctuation(character)) {
            res += character;
        }
    }
    return res;
}

function checkPunctuation(char) {
    const punctuation = '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~';
    return punctuation.includes(char);
}
let str = "Welcome, to the geeksforgeeks!!!";
console.log(remove(str));

Output

Welcome to the geeksforgeeks