=! vs != ?

Question

which is diference between =! and != ?

Answer 1

Actually =! is not one operator but two

!= means NOT EQUAL

=! will assign the invers value of a var :
var1 = !var2

Answer 2

=! is actually 2 operators.

the first one is assignment "=", the second is the logical operator NOT "!".

For example x =! true means that "x" value is "false".

On the other hand, "!=" is a relational operator and can be used, for example, in the condition of an "if" statement.

Answer 3

There is no =! operator.
It's bad coding style.

bad: x =! y;
good: x = !y;

Both ways might work though, giving x the invers of y.

Answer 4

==

Answer 5

مالفرق بين
5=8
5==8