JavaScript for Beginners #16: Truthy and Falsy Values in JavaScript

What are truthy values in JavaScript? What are falsy values in JavaScript? In this lesson, we will talk about truthy and falsy values in JavaScript.

0:00 Introduction
0:20 MDN Truthy
1:15 MDN Falsy
1:55 The five falsy values
2:19 Revisiting the Number() function
3:17 Revisiting the String() function
3:40 The Boolean() function
4:31 Examples of truthy and falsy values with strings
5:44 Examples of truthy and falsy values with undefined and null
7:06 Examples of truthy and falsy values with 0 and NaN
8:25 Using truthy and falsy with if/else statements

JavaScript Playlist:

Falsy Values to Remember: 0, "", undefined, null, NaN

MDN Truthy

MDN Falsy

MDN Boolean

NodeJS:

VS Code:

[gorankukic]

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