TypeScript String codePointAt() Method

The codePointAt() is an inbuilt TypeScript String method. It is mainly used to get the Unicode point value of any character that is given in a string.

Syntax:

stringName.codePointAt(position);

Parameters:

• position: Here you have to pass the index position of that character whose Unicode point value you want to retrieve.

Return Value:

It returns a Unicode value if the given index position of the character is valid, otherwise returns undefined.

Example 1: The below code is a basic implementation of the codePointAt() method in TypeScript.

Javascript

let str: string = "Hjëllo";
let uniChar: number | undefined =
str.codePointAt(1);
console.log(uniChar);

Output:

106

Example 2: The below code will show the behavior of the codePointAt() method if a invalid position passed to it.

Javascript

let str: string = "Hjëllo GFG";
let uniChar: number | undefined =
str.codePointAt(10);
console.log(uniChar);

Output:

undefined