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

Difference Between == and === in JavaScript

Examples

1. == (Loose Equality) - Type Coercion Happens

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console.log(5 == "5"); // true (string "5" is converted to number 5)
console.log(0 == false); // true (false is converted to 0)
console.log(null == undefined); // true (special case)

2. === (Strict Equality) - No Type Conversion

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console.log(5 === "5"); // false (different types: number vs string)
console.log(0 === false); // false (boolean vs number)
console.log(null === undefined); // false (different types)

Key Takeaways

• Use === for precise comparisons (recommended to avoid unexpected behavior).
• Use == only if you intentionally want type coercion.
• Special case: null == undefined is true, but null === undefined is false.

Would you like a deeper dive into JavaScript type coercion? 🚀