Why == works in an if statement?

Projects Programming
11

Krupski:
"==" means "does it equal?"

"=" means "set this to that".

Example:
** X = 3;**
** if (X == 4) {**
** print ("It's not the same!"); <-- this gets printed because 3 is not equal to 4**
** } else {**
** print ("It matches!");**
** }**

Now watch what happens here:
** X = 3;**
** if (X = 4) { <-- this SETS X to a value of 4**
** print ("It's not the same!");**
** } else {**
** print ("It matches!"); <-- this gets printed because setting X to anything returns boolean "true"**
** }**

Make sense?

Eeeerm... I think you have the meaning of true and false mixed up.
What you probably meant is this:

    X = 3;
    if (X == 4) {
        print ("It matches!");
    } else {
        print ("It's not the same!"); <-- this gets printed because 3 is not equal to 4
    }

    X = 3;
    if (X = 4) { <-- this SETS X to a value of 4
        print ("It matches!"); <-- this gets printed because setting X to anything non-zero returns boolean "true"
    } else {
        print ("It's not the same!");
    }