What are Data-Types in JavaScript?

1. 1. Data types always represents the type of information variable has.
   2. Every programming language have their own set of data-types.
   3. JavaScript also have several data-types but as programmer we usually don’t use them explicitly.
   4. JavaScript is loosely typed scripting language hence data-type declaration is not required it’ll be resolved internally.
   5. In case of TypeScript we need to declare data-types explicitly since its stricter version of JavaScript so it’s always better to understand data-types.

How Data-Types are classified in JavaScript?

1. 1. In JavaScript data-types are mainly classified into two types i.e. Primitive and Non-Primitive.
   2. Primitive Data-Types
      1. String
      2. Number
      3. BigInt
      4. Boolean
      5. Undefined
      6. Null
      7. Symbol
      8. Non-Primitive data-types
         1. Object
         2. Arrays
         3. Functions
         4. Dates
         5. Maps
         6. Sets
         7. RegExp

String

1. In JavaScript String is used to re-present textual information same like other programming languages.
2. JavaScript supports different types string declarations.
3. E.g. “Hello”, ‘Hello’, `Hello`