' if ' technique

[habi]

Consider
                     if( player && player.IsSpawned )    // line 97

I always feared that this throws an error in the case player is null ( i.e. by that time player quits or something )
So null.IsSpawned and error happens. So i used to put two if lines: one for checking player is not null and second for checking player.IsSpawned.

But today after reading about the order of execution of if statement and some testing, i think line 97 is perfectly okay. Because it says the second condition is evaluated only if the first condition is true, so player is not null.

So no need of two if statements! One will do.
Hope it helps.

[umar4911]

It's because you are using the AND operator,  not OR. It's the purpose of AND operator to make sure that both are true. if(player) means to check if player is not null.

[Xmair]

It's because you are using the AND operator,  not OR. It's the purpose of AND operator to make sure that both are true. if(player) means to check if player is not null.

You clearly don't get what he's saying.

This is pretty basic but yeah it's surely useful for some people.