What are the best practices for equality in JavaScript?

What are the best practices for equality in JavaScript?

In JavaScript, it's important to use strict equality (===) to avoid unexpected type coercion. This ensures that both the value and type are compared.

Can you explain the difference between == and ===?

Sure! The == operator checks for equality after converting both operands to a common type, while === checks for equality without type conversion.

When should I use == instead of ===?

It's generally recommended to avoid using == to prevent bugs related to type coercion. Use === unless you have a specific reason to use ==.

Are there any exceptions where using == is acceptable?

In some cases, like comparing null and undefined, using == can be acceptable since both are considered equal. However, it's best to use === for clarity.