var, let and const - What, why and how - ES6 JavaScript Features

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In ES5, we only had one type of variable, var, but in ES6, we have three. types of variables: var, let and const. In this video, we explore the what, why, and how of var, let and const, and I also do a little lecture on the value of minimising mutable state.

► 00:35 var keyword in JavaScript
► 02:35 Immediately-Invoked Function Expression (IIFE) in JavaScript
► 03:14 hoisting variables in JavaScript
► 08:29 let keyword in JavaScript
► 11:55 const keyword in JavaScript
► 14:14 Minimize mutable state when programming

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Resources:

- Semicolons cannot save you! (Another funfunfunction video)
https://www.youtube.com/watch?v=Qlr-FGbhKaI&index=11&list=PL0zVEGEvSaeH21VDycWYNWU7VKUA-xLzg

- ES6 JavaScript Features (Playlist of this series)
https://www.youtube.com/watch?v=ategZqxHkz4&index=1&list=PL0zVEGEvSaeHJppaRLrqjeTPnCH6vw-sm

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