String charCodeAt()
In JavaScript, String.charCodeAt()
method is used to get the Unicode-16 character from the string at given index.
Syntax
str.charCodeAt(n)
where
str
is a string.n
is an integer (position/index).
charCodeAt()
method returns the UTF-16 code (unicode) character (as integer) from string str
present at the index n
.
Examples
1. In the following program, we get unicode character in the string name
at index=3.
let name = 'apple';
let output = name.charCodeAt(3);
console.log(output);
2. In the following program, we take the index n
such that the it outside the range of string, then charCodeAt()
must return NaN
(Not a Number).
let name = 'apple';
let output = name.charCodeAt(15);
console.log(output);