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Increment
In programming, you often want to increase or decrease a counter by one.
This can easily be done with the increment or decrement operator.
let x = 1;
x++;
let y = 10;
y--;x++ is the same as x = x + 1 and y-- is the same as y = y - 1.
After executing the example code, x has the value 2 and y has the value
9.Exercise
Which value does x have after execution of the following code?
let x = 3;
x++;
x = x * 2;
x--;
+ Solution
7
