How to usesubstring() Method in JavaScript in Javascript
In this approach, we will use the substring() method for removing the last n character of the string. The string.substring() is an inbuilt function in JavaScript that is used to return the part of the given string from the start index to the end index. Indexing starts from zero (0). By calculating the starting index as “str.length - n", we get the last n character.
Syntax:
string.substring( Startindex, Endindex )
Example:
function getLastCharacter(str,n) {
let newString = str.substring(str.length - n);
return newString;
}
let str = "w3wiki";
let n=5;
console.log(getLastCharacter(str,n));
Output
geeks
How to Get the Last N Characters of a String in JavaScript
We will learn how to get the last N characters of a string in JavaScript. We have given a string and we need to get the “n” character from the last of the string. There are various methods for finding the “n” character from the last of the string.
Below are the following methods through which we get the last N characters of a string in JavaScript:
Table of Content
- Approach 1: Using substring() Method in JavaScript
- Approach 2: Using slice() Method in JavaScript
- Approach 3: Using loop and string concatenation
- Approach 4: Using String’s substr() Method
- Approach 5: Using Array.from() and slice() Method