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JavaScript - Data Types

JavaScript has three primitive data types - Number, String, and Boolean.

Number

Integer
BigInt (Big Integer)
Float

String
Boolean

Other data types :

undefined
null
Object
Symbol

Number

JavaScript number data types are integer, big integer, and float.

let a = 123;                 // Integer
let b = BigInt(12345ln);     // Big Integer
console.log(typeof 1n === 'bigint')             // true
console.log(typeof BigInt('1') === 'bigint')    // true
let c = 12.345;              // Float

String

let a = "This is a string.";
let b = 'Learn JavaScript';

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