Javascript
100 Front End Interview Questions Challenge

Data Types

PRO

The Various Data Types in JavaScript

Primitive Data Types:

  • boolean: true or false.
  • number: integers and floating point numbers.
  • null: empty value that is user assigned.
  • undefined: has no value.
  • string

Complex Data Types:

  • Objects
  • Useful Data Structures that are recognized as object, but very important to know separately:
    • Arrays
    • Maps
    • Sets
 

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