What's is the (=!) Used for?

Answer 1

http://stackoverflow.com/questions/21029174/whats-this-operator

Answer 2

for the mirror of the true, =! is "not"

Answer 3

Its != not =!

Answer 4

=! is not right expression.
!= is right expression.

Answer 5

its expressed as != and not =!
!= is an operator and it simply negates the equality operator "==" it just means not equal to, if 5==5 then 3 != 5
its also called a comparison operator cause its used to compare two operands
like
if variable a != variable b :
do something.........

Answer 6

When you need to check if two things aren't equal to each other. The current examples used aren't too useful but when you have variables that change values during runtime, you may want to check if the variables are still equal or not.

For example, think of a troubleshooting problem; a printer that isn't turning on.
Step 1. Plug it in.
Step 2. Is the printer not working still?

The second step would use the '!=' operator.

Answer 7

'=!' means 'Not'
for example..
7 =! 8
Life =! Fair. :p