String Basics

String Basics

A string is a sequence of characters like letters, numbers, and symbols.

Writing strings

You can use single quotes, double quotes, or backticks:

let a = "Hello";
let b = 'Hello';
let c = `Hello`;

All three create the same string.

String length

let text = "Hello";
text.length; // 5

Access characters

text[0];      // "H"
text.charAt(1); // "e"

Concatenation

Join strings with +:

"Hello " + "World"; // "Hello World"

Escaping quotes

Use a backslash to put quotes inside a string:

let msg = "She said \"Hi\"";

Common escapes

• \n newline
• \t tab
• \\ backslash
• \" and \' quotes

TL;DR

• Strings are text wrapped in ', ", or `.
• .length gives the number of characters.
• + joins strings.
• Backslash escapes special characters.