Basic JavaScript - Decrement a Number with JavaScript

[Teller]

Using the double minus signs before and after the variable are both valid syntax.

@camperbot

the ‘–’ operator:

let a = 5;
a--; // Now, 'a' is 4
--a; // Now, 'a' is 3

On line one, the variable a is declared and assigned the value 5.
On line two a is decremented using valid syntax so its value is now 4.
On line three a is decremented again using valid syntax so its value is now 3.

Happy coding