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What are the data types available in JavaScript? Explain

In JavaScript data types is an important concept that helps to operate on variables,JavaScript supports mainly two different kinds of data types-

  • Primitives
  • Objects
1. Primitives Data Type

It supports six data types that’s are given below.

  • Boolean: It represents only true or false based on condition.
  • Number: It can be written with or without decimals. Example var num1 = 32;
  • String: It is used to store texts and inside of either double or single quotes. Example var str_one = 'Best Interview Question';
  • Null: It is "nothing" but supposed to be something that does not exist.
  • Undefined: It has no value but variable is exists. Example var MyVariable_1;
    console.log(MyVariable_1); // undefined
  • Symbol: It is new in ES6. It is an immutable data type that have unique value.Example : const BestInterviewQuestion = Symbol(‘BestInterviewQuestion’);
2. Objects Data Type

It is a type of not primitive data Type. It is a collection of properties and these properties are stored in key and value pairs.

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