How to use the substring() method In Javascript

In javascript the substring method returns a substring of string based on the index numbers provided as arguments.

Syntax:

str.substring(index);

Example: In this example, we will delete the first character of the string by providing an index value.

HTML
<!DOCTYPE html>
<html lang="en">
<head>
    <title>
        Delete first character of a string in JavaScript
    </title>
</head>

<body>
    <h3>
        Delete first character
        of a string
    </h3>
    <p>
        Click on button to display the
        extracted part of the string
    </p>

    <button onclick="myGeeks()">
        Click Here!
    </button>

    <p id="GFG"></p>

    <script>
        function myGeeks() {
            let str = "w3wiki";
            let result = str.substring(1);
            document.getElementById("GFG").innerHTML
                = result;
        }
    </script>
</body>
</html>

Output: 

Output using substring() method

Delete first character of a string in JavaScript

In this article, we will delete the first character of a string in Javascript. There are many ways to delete the first character of a string in JavaScript.

Below are the methods used to delete the first character of a string in JavaScript:

Table of Content

  • Using slice() Method
  • Using substr() Method
  • Using replace() method
  • Using the substring() method  
  • Using String.prototype.split()
  • Using Array shift()

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