Can I reassign variables using 'let'?

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#1

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Dumb question but can you not reassign a variable using “let”? This is in reference to Intro to JavaScript.
https://www.codecademy.com/courses/introduction-to-javascript/lessons/variables/exercises/typeof

#2

var, let, and const are declarations for when you first declare a variable.

#3

right. yes I got that, and using let to reassign did not work. so to reassign, you just do the variable and then the value?

e…g.
var myCity = “Miami”;
myCity = “New York”;

thank you!

#4

Correct that is how you do it. It is preferred not to use var since ES6 with the addition of let and const.

#5

thanks. one question, since you are here, what are “let” and “const” and “var” called? i mean i know they are representing variables but is there a name for the declarations or are they just called declarations

#6

var: variable
let: Let this be a variable (I made this up)
const: constant

#7

They are keywords used in variable declarations.

1 Like
#8

Can’t do this:

let x = 5;
let x = 3;

(Although that might work if you used var instead of let.)

Can do this:

let x = 5;
x = 3;