Using NOT operator in IF conditions

Question

Is it really a good practice to avoid using NOT operator in IF conditions in order to make your code better readable? I heard the if (doSomething()) is better t

Answer 1

I never heard of this one before.

How is

if (doSomething()) {
} else {
   // blah
}

better than

if (!doSomething()) {
   // blah
}

The later is more clear and concise.

Besides the ! operator can appear in complex conditions such as (!a || b). How do you avoid it then?

Use the ! operator when you need.