JavaScript Datatypes - School4Tech

JavaScript has several data types −

Number: Represents numeric values, including integers and floating-point and double numbers. Eg. 123, 123.45
String: Represents a sequence of characters, including letters, numbers, and symbols, enclosed in single or double quotes.

Eg. “hello World”, “this is String”

Boolean: Represents either true or false.
Undefined: Represents a variable that has been declared but has not been assigned a value.
Null: Represents an intentional non-value.
Object: Represent complex data structures such as arrays, dates, and more.
Symbol: A new data type introduced in ECMAScript 6, used to create unique and immutable identifiers.

// Primitive data types
var string = "Hello, World!";
var number = 42;
var boolean = true;
var nullValue = null;
var undefinedValue = undefined;

// Object data type
var object = {key: "value"};
var array = [1, 2, 3];
var functionExpression = function () {};
var date = new Date();
var regex = /ab+c/;

// Primitive data types

var string = "Hello, World!";

var number = 42;

var boolean = true;

var nullValue = null;

var undefinedValue = undefined;

// Object data type

var object = {key: "value"};

var array = [1, 2, 3];

var functionExpression = function () {};

var date = new Date();

var regex = /ab+c/;

Leave a Comment Cancel Reply