remove a character from a string at a specific index in typescript

In TypeScript, strings are immutable, which means that once created, their contents cannot be changed. However, you can create a new string by taking a portion of an existing string and concatenating it with other strings or characters. One way to remove a character from a string at a specific index is to use the substr() function and concatenate the portion of the string before the character to be removed with the portion after the character to be removed. Another way is to convert the string to an array, remove the element at the specific index using the splice() function, and then convert the array back to a string using the join() function.

Here's an example code for both approaches:

index.ts
// Using substr() function
let str1 = "hello world";
let index1 = 6; // index of the space character
let newStr1 = str1.substr(0, index1) + str1.substr(index1 + 1);
console.log(newStr1); // Output: "helloorld"

// Using splice() function
let str2 = "hello world";
let index2 = 6; // index of the space character
let arr2 = str2.split("");
arr2.splice(index2, 1);
let newStr2 = arr2.join("");
console.log(newStr2); // Output: "helloworld"
438 chars
14 lines