When should I use equality vs strict equality in JavaScript?

What's the difference between equality (==) and strict equality (===) in JavaScript?

Equality (==) checks for value equality with type coercion, while strict equality (===) checks for both value and type.

Can you give me an example of when to use each?

Sure! Use == when you want to compare values without worrying about their types, like 0 == '0'. Use === when you want to ensure both value and type match, like 0 === '0'.

Are there any performance differences between the two?

Yes, strict equality (===) is generally faster because it doesn't involve type coercion, making it a better choice for performance.

What are some common mistakes developers make with these operators?

Common mistakes include using == when strict equality is needed, leading to unexpected results due to type coercion.