Removing characters from string is a common thing in js; In this tutorial, we will show you some approaches to remove the first and last characters from the string in javaScript by w3school.
How to Remove First and Last Characters From String in JavaScript
Here are some approaches to remove the first and the last character from a string in javascript:
- Approach 1: Using
substringmethod - Approach 2: Using string slicing
- Approach 3: Using regular expressions
Approach 1: Using substring method
In JavaScript, there’s a method called substring() that helps us to remove characters or letters from the given string. When you use this method, you need to tell it where to start and where to stop.
Here is an example of removing the first and last character or letter from string in javascript. Here’s how:
// Sample string
let originalString = "Hello, World!";
// Removing the first and last characters
let modifiedString = originalString.substring(1, originalString.length - 1);
// Displaying the result
console.log("Original String: ", originalString);
console.log("Modified String: ", modifiedString);
Approach 2: Using string slicing
The slice() method in JavaScript helps you to remove characters from a string by specifying where it should start and end.
For removing the first and last characters from a string, you can use this code:
// Sample string
let originalString = "Hello, World!";
// Removing the first and last characters
let modifiedString = originalString.slice(1, -1);
// Displaying the result
console.log("Original: ", originalString);
console.log("Modified: ", modifiedString);
Approach 3: Using regular expressions
The replace() method in JavaScript requires two things: the original string you want to modify and the new string you want to use.
If you want to delete the first and last character from a string, you can do it like this:
// Sample string
let originalString = "Hello, World!";
// Remove the first and last character using regular expressions
let modifiedString = originalString.replace(/^.(.*).$/, '$1');
console.log("Original String:", originalString);
console.log("Modified String:", modifiedString);
Conclusion
That’s it; In this tutorial, you have learned how to remove the first and last character from string in javaScript using substring, slicing, and regular expression.
