Literals

• null and undefined (they are the same)
• true
• false
• Numbers such as 7 and 0.3
• Character strings such as "text" and 'text'
• Arrays such as [1, 2, 3]

Note that object literals such as { x: 3, y: 4 } are not supported. An object must be created by the new operator as an instance of a class.