JavaScript String charCodeAt() method

charCodeAt()The method returns a number between 0 and65535The integer between them, which represents the UTF at the given index-16Code unit.

The index of the first character is 0, the index of the second character is1, and so on.

The index of the last character in the string isString .length-1.

Syntax:

string.charCodeAt(index)

Example

var str = 'www.oldtoolbag.com';
str.charCodeAt(1);

All browsers fully support the charCodeAt() method:

Method
charCodeAt()	Is	Is	Is	Is	Is

Parameter	Description
index	An integer representing the index of the character to return

Return Value:	A number representing the UTF of the character at the given index-16Code Unit Value; NaN if the index is out of range
JavaScript Version:	ECMAScript 1

Returns the UTF of the last character in the string-16Code Unit:

Example

var str = 'oldtoolbag.com';
str.charCodeAt(str.length-1);