Variable scope

variable scope

Variable scope = where a variable is accessible

let = variables are limited to block scope {}

var = variables are limited to block function(){}


                for(let i = 1; i <= 3; i += 1){ 

                    // set at one, is less than or equal to 3, then increment by one

                }


            result:
 1
2
3

variable scope

Variable scope = where a variable is accessible

let = variables are limited to block scope {}

var = variables are limited to block function(){}

result: 123

result:
1
2
3