What is the difference between == and === operators?

== (Loose Equality):
- Performs type coercion before comparison
- Converts operands to same type, then compares

=== (Strict Equality):
- No type coercion
- Compares both value and type

Examples:

5 == "5"    // true (string converted to number)
5 === "5"   // false (different types)
true == 1   // true (boolean converted to number)
true === 1  // false (different types)
null == undefined   // true (special case)
null === undefined  // false (different types)
0 == false  // true (both convert to 0)
0 === false // false (different types)

Best practice: Use === for predictable comparisons.