Having this variable:
var edad = 22;
We apply the unary operators: ++ and - -, both before and after the variable, in the following way:
console.log(++edad); \ 23.
console.log(--edad); \ 21.
If we apply at the end:
console.log(edad++); \ 22.
console.log(edad--); \ 22.
What is the difference between the two of them to give such results?
I leave you a commented code: review the results, take into account the actions before and after
var numero=10;
console.log(numero++);// primero lo muestra, muesta el valor actual y luego lo suma 1
console.log(numero); //muestra el valor actual
console.log(++numero);//primero lo suma y luego lo muestra
console.log(numero); //muestra el valor actual