Quick Answer: What are all the JavaScript data types?

How many data types are there in JavaScript?

There are six basic data types in JavaScript which can be divided into three main categories: primitive (or primary), composite (or reference), and special data types. String, Number, and Boolean are primitive data types. Object, Array, and Function (which are all types of objects) are composite data types.

What are the 7 data types in JavaScript?

In javascript, there are 7 data types.

  • Number. Numbers in JavaScript are stored as 64-bit floats, and can be manipulated using the built-in operators. …
  • String. Strings are always declared through quotations: …
  • Boolean. Booleans are the logical values, either true or false . …
  • Symbol. …
  • Object. …
  • undefined. …
  • null.

What are the 5 data types?

Most modern computer languages recognize five basic categories of data types: Integral, Floating Point, Character, Character String, and composite types, with various specific subtypes defined within each broad category.

What are 4 types of data?

4 Types of Data: Nominal, Ordinal, Discrete, Continuous

  • These are usually extracted from audio, images, or text medium. …
  • The key thing is that there can be an infinite number of values a feature can take. …
  • The numerical values which fall under are integers or whole numbers are placed under this category.
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What is JSON format?

JavaScript Object Notation (JSON) is a standard text-based format for representing structured data based on JavaScript object syntax. It is commonly used for transmitting data in web applications (e.g., sending some data from the server to the client, so it can be displayed on a web page, or vice versa).

What are the 8 JavaScript data types?

String, Number, and Boolean are primitive data types.

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  • Boolean Data Types. …
  • Null Data Types. …
  • Undefined Data Type. …
  • Number Data Type. …
  • BigInt Data Type. …
  • String Data Type.

What are the six JavaScript data types?

JavaScript has six primitive types: number , string , boolean , null , undefined , and symbol .

What is === in JavaScript?

=== (Triple equals) is a strict equality comparison operator in JavaScript, which returns false for the values which are not of a similar type. This operator performs type casting for equality. If we compare 2 with “2” using ===, then it will return a false value.

What is data type example?

This data comes in different forms. Examples include: your name – a string of characters.


Data Type Represents Examples
floating point (real) fractional numbers -87.5 , 0.0 , 3.14159
string A sequence of characters “Hello world!”
Boolean logical true or false true , false
nothing no data null

What is basic data type?

VARIANT is a universal type that can be used to store almost any kind of data: number, string, date/time, true/false, references to objects, arrays and so on. … All variables and parameters that you create and use in your test projects are VARIANT-compatible.

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