What are falsy values in JavaScript?

script.js

// Falsy values in Javascript
// The falsy values in JavaScript are 0, 0n, null, undefined, false, NaN, and the empty string "".
// A false value is a value that is false when encountered in Boolean context.
Boolean(0)
> false
Boolean(0n)
> false
Boolean(null)
> false
Boolean(undefined)
> false
Boolean(false)
> false
Boolean(NaN)
> false
Boolean('')
> false

// Truthy values is going to be everything else - anything that is not falsy

// The 7 falsy values
0 ? console.log('Truthy') : console.log('Falsy') // Falsy
0n ? console.log('Truthy') : console.log('Falsy') // Falsy
null ? console.log('Truthy') : console.log('Falsy') // Falsy
undefined ? console.log('Truthy') : console.log('Falsy') // Falsy
'' ? console.log('Truthy') : console.log('Falsy') // Falsy
false ? console.log('Truthy') : console.log('Falsy') // Falsy
NaN ? console.log('Truthy') : console.log('Falsy') // Falsy

// Some examples of Truthy values.
37 ? console.log('Truthy') : console.log('Falsy') // Truthy
37n ? console.log('Truthy') : console.log('Falsy') // Truthy
true ? console.log('Truthy') : console.log('Falsy') // Truthy
let empty = []
empty ? console.log('Truthy') : console.log('Falsy') // Truthy
empty = {}
empty ? console.log('Truthy') : console.log('Falsy') // Truthy

// Reference: https://medium.com/coding-at-dawn/what-are-falsy-values-in-javascript-ca0faa34feb4