Working With Strings in JavaScript I
JavaScript·3 min read·Mar 17, 2025
In JavaScript, a string literal, string of characters, or simply string, is a primitive data type that represents a sequence of characters, such as letters, digits, symbols, or spaces, enclosed in single quotes '', double quotes "", or backticks ``.
It is used for storing textual information, text manipulation, and representing data in a human-readable format.
Accessing individual characters
To access the individual characters of a string, you can use the square brackets syntax []:
string[index]Where:
stringis a string of characters.indexis the index (or position) of the character you want to access within thestring. It can either be a user-defined number or a variable containing a computed number.
Notes:
- The index of the first character in a string is
0.- When accessing an "out of bounds" index, the expression will result in
undefined.