charAt() is a method that returns the character from the specified index.
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.
Use the following syntax to find the character at a particular index.
string.charAt(index);
index − An integer between 0 and 1 less than the length of the string.
Returns the character from the specified index.
Try the following example.
<html> <head> <title>JavaScript String charAt() Method</title> </head> <body> <script type="text/javascript"> var str = new String( "This is string" ); document.writeln("str.charAt(0) is:" + str.charAt(0)); document.writeln("<br />str.charAt(1) is:" + str.charAt(1)); document.writeln("<br />str.charAt(2) is:" + str.charAt(2)); document.writeln("<br />str.charAt(3) is:" + str.charAt(3)); document.writeln("<br />str.charAt(4) is:" + str.charAt(4)); document.writeln("<br />str.charAt(5) is:" + str.charAt(5)); </script> </body> </html>
str.charAt(0) is:T str.charAt(1) is:h str.charAt(2) is:i str.charAt(3) is:s str.charAt(4) is: str.charAt(5) is:i