JS String Prototype CharAt

JavaScript String prototype charAt

The charAt() method returns the specified character from a string.

Syntax

str.charAt(index)

Parameters

index

An integer between 0 and 1-less-than the length of the string.

MDN link | MSDN link

Description

Characters in a string are indexed from left to right. The index of the first character is 0, and the index of the last character in a string called stringName is stringName.length - 1. If the index you supply is out of range, JavaScript returns an empty string.

Examples

var anyString = 'Brave new world';

console.log("The character at index 0   is '" + anyString.charAt(0)   + "'"); // 'B'
console.log("The character at index 1   is '" + anyString.charAt(1)   + "'"); // 'r'
console.log("The character at index 2   is '" + anyString.charAt(2)   + "'"); // 'a'
console.log("The character at index 3   is '" + anyString.charAt(3)   + "'"); // 'v'
console.log("The character at index 4   is '" + anyString.charAt(4)   + "'"); // 'e'
console.log("The character at index 999 is '" + anyString.charAt(999) + "'"); // ''

var str = "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
document.write(str.charAt(str.length - 1));

// Output: Z