Kotlin: What is the difference between = vs ==?

Question

I'm trying to set a certain value, monsterHealth , to display 0 instead of a negative number. If I'm trying to reassign the value to show 0 instead of, say, -2 , would I want to use = or == ?

Answer 1

Those are different operators:

• = - assignment operator,
• == and != - equality operators,
• === and !== - referential equality operators.

also

• val - read only variable/property (it cannot be reassigned/changed),
• var - mutable variable/property.

Kotlin Documentation - Keywords and operators