X++ & ++X i cant understand it

Question

Hi
Please I Need Some One ..explain To Me The Difference Between
X++ & ++X
OR
X-- & --X

Answer 1

++x increments the value of x and then returns x
x++ returns the value of x and then increments

example:

x=0; y=0;
a=++x;
b=y++;

after the code is run a=1 but b=0.

Answer 2

var x = 5;

console.log( x++ ) // output x=5
console.log (x) //output x=6
console.log(++x) //output x=7
console.log(x) //output x=7

console.log(x++ )
is same to
console.log(x);
x=x+1;

console.log(++x)
is same to
x=x+1;
console.log(x)

Answer 3

var x = 5;
var y = x++;

result:
x=6;
y=5;

///////////////////////

var x=5;
var y = ++x;

result:
x=6;
y=6;

Answer 4

Var x=1;
Console. Log(x++ + ++x +x) ;