How to Insert Character at Specific Index in String in JavaScript - Step by Step Examples

How to Insert Character at Specific Index in String in JavaScript ?

Answer

To insert a character at a specific index in a string in JavaScript, you can use string concatenation or the `splice()` method.


✐ Examples

1 Insert '!' at index 5 in "Hello World"

In this example,

  1. We create a string named str with a value of "Hello World".
  2. We then use string concatenation to insert the character '!' at index 5.
  3. Finally, we print the modified string str.

JavaScript Program

let str = 'Hello World';
str = str.slice(0, 5) + '!' + str.slice(5);
console.log(str);

Output

Hello! World

Summary

In this tutorial, we learned How to Insert Character at Specific Index in String in JavaScript language with well detailed examples.


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