JavaScript Fundamentals Data Types

• Seven primitive data types:
• number for numbers of any kind: integer or floating-point, integers are limited by ±(253-1).
• bigint for integer numbers of arbitrary length.
• string for strings. A string may have zero or more characters, there’s no separate single-character type. boolean for true/false.
• null for unknown values – a standalone type that has a single value null.
• undefined for unassigned values – a standalone type that has a single value undefined.
• symbol for unique identifiers.
• And one non-primitive data type: object for more complex data structures.