Data Types
JavaScript Data Types
In JavaScript Data Types, the term datatype mainly refer to the different types of values with which a program can work.
JavaScript Variables can work with three primitive data types, such as numbers, strings, boolean and further non-primitive data types are objects, date, arrays.
For executing a program, it is important to know a data type of variables because without data type it is quite impossible for a computer to produce the output of a program.
Unlike any other programming language, JavaScript does not define different type of numbers, like integers, short, long, floating-point, etc.
Primitive Data Types
|
Data Type |
Description |
|---|---|
|
Number |
represents the collection of characters e.g. “Welcome” |
|
String |
represents the numerical values e.g. 100 |
|
Boolean |
represents the Boolean values either true or false |
|
Null |
represents the null value |
|
undefined |
represents the undefined value |
For example,
var x = 10; //number
var str = “TutorialLink” ; //string
var name = [ “Nitin”, ”Pandit” ]; //array
Here, the variable x is a number data type as it assigns a value of 10. The variable str is a string data type as it assigns a value in a sequence of characters as “TutorialsLink”. The variable name defined as an array data type.
