comparison.js

console.log("2" == 2);   // true (loose equality performs type coercion)
console.log("2" === 2);  // false (strict equality checks type and value)

// String comparison is lexicographical (like a dictionary), not numerical.
console.log("2" > "10"); // true, because the character '2' comes after the character '1'.


console.log(null == undefined);  // true (loose equality treats them as the same)
console.log(null === undefined); // false (strict equality knows they are different types)


// A very tricky part of JavaScript!
console.log(null > 0);   // false
console.log(null == 0);  // false (the equality check `==` has special rules for null)
console.log(null >= 0);  // true! Why? Because for relational comparisons (>, <, >=, <=), null is converted to 0. So this becomes (0 >= 0), which is true.


console.log(1===2);