remove a substring from a string at a specific index in javascript

To remove a substring from a string at a specific index in JavaScript, you can use the splice() method along with string manipulation.

Here is an example code snippet:

index.tsx
let str = "Hello World";
let index = 6;
let lengthToRemove = 5;

let strArr = str.split(""); // convert string to array
strArr.splice(index, lengthToRemove); // remove substring
str = strArr.join(""); // convert array back to string

console.log(str); // output: "Hello"
271 chars
10 lines

In this code, we first define the string Hello World and specify the index and length of the substring we want to remove. We then use the split() method to convert the string into an array, use the splice() method to remove the substring at the specified index, and finally use the join() method to convert the array back into a string. The output of this code will be Hello.