Var, Let, and Const in JavaScript for Beginners

In this video I talk about the key differences between var, let, and const in JS. TL;DW - var can be declared more than once while the others cannot - var and let can be reassigned while const cannot - it's constant! - let and const have block scope while var does not - JS "hoists" variables declarations with var to the top of the document and does not do so with let and const - Don't use var, use const for variables and if you know you may assign a different value to the variable in the future, use let follow me at https://twitter.com/SchadeyHacker