What is a primitive value in javascript

In JavaScript, a primitive value is a data type that represents a single, immutable value. There are six primitive data types in JavaScript:

  1. undefined: Represents the absence of a defined value.

  2. null: Represents the intentional absence of any object value.

  3. boolean: Represents a logical value, either true or false.

  4. number: Represents numeric values, including integers and floating-point numbers.

  5. string: Represents textual data enclosed in single quotes (''), double quotes ("") or backticks (``).

  6. symbol: Represents a unique and immutable value that can be used as an identifier for object properties.

Primitive values are directly stored in memory and are not objects. They have a fixed size in memory and are compared by their actual value.

For example:

let myUndefined = undefined;
let myNull = null;
let myBoolean = true;
let myNumber = 10;
let myString = "Hello";
let mySymbol = Symbol("unique");

console.log(typeof myUndefined); // Output: "undefined"
console.log(typeof myNull); // Output: "object" (a quirk in JavaScript)
console.log(typeof myBoolean); // Output: "boolean"
console.log(typeof myNumber); // Output: "number"
console.log(typeof myString); // Output: "string"
console.log(typeof mySymbol); // Output: "symbol"

These primitive values form the building blocks of JavaScript and are used to represent basic data types and values in the language.