In JavaScript, == and === are both comparison operators, but they behave differently:

1. == (Loose Equality or Abstract Equality):

   • Compares two values for equality, but with type coercion.
   • This means that if the values are of different types, JavaScript will try to convert them to the same type before making the comparison.

   Example:

   javascript

   5 == '5' // true because '5' is coerced to a number null == undefined // true because they are considered equal when using ==

2. === (Strict Equality):

   • Compares both value and type without any type coercion.
   • The comparison will return true only if both the value and the type are the same.

   Example:

   javascript

   5 === '5' // false because one is a number and the other is a string null === undefined // false because they are different types

In general, it's recommended to use === (strict equality) to avoid unexpected behavior caused by type coercion.