Understanding postfix and prefix increment or decrement

Starting my javascript journey as a learning web developer,has not been smooth ,all because I started learning programming with my mobile device,which i will talk on later...

During the learning phase of javascript, or i will say mostly all programming languages, postfix and prefix increment or decrement has always been a problem for new programmers. So below is the explanation for this...

Prefix increment and decrement

 i = 2;

  x = ++i  pre (before).

// x = 3,  i = 3

The explanation for the above code follow thus...

• 'i' will be increase first before it's been assign to be the value of 'x'. Which makes x = 3 and i = 3.

 i = 2;

  x = --i  pre (before).

// x = 1,  i = 1

• 'i' will be decrease first before it's been assign to be the value of 'x'. Which makes x = 1 and i = 1.

Postfix increment and decrement

 i = 2;

  x = i++  post (after).

// x = 2,  i = 3

The explanation for the above code follow thus...

• 'i' will be increase first after it's been assign to be the value of 'x'. Which makes x = 2 and i = 3.

 i = 2;

  x = i--  post (after).

// x = 2,  i = 1

• 'i' will be decrease first after it's been assign to be the value of 'x'. Which makes x = 2 and i = 1.

Well going through this should give you a little understanding on this topic and this will make a good start for beginners.