Javascript Practice 28: JS Hero - Increment

 

Question: 

Which value does x have after execution of the following code?

let x = 3;

x++;

x = x * 2;

x--;

Answer: 

x has a value of 7 

> x = 3

> x++:  3+1 = 4

> x = x*2; i.e. 4*2 = 8

> x--: 8-1 = 7