JavaScript Fundamentals Data Types
JavaScript fundamentals including a hello world example; variables data types; operations; functions ect.
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.