Operator logika

const aString = 'a';
const aNumber = 10

console.log(aString == aNumber) // true, karena nilainya sama-sama 10
console.log(aString === aNumber) // false, karena walaupun nilainya sama, tetapi tipe datanya berbeda

let a = 10;
let b = 12;

/* AND operator */
console.log(a < 15 && b > 10); // (true && true) -> true
console.log(a > 15 && b > 10); // (false && true) -> false

/* OR operator */
console.log(a < 15 || b > 10); // (true || true) -> true
console.log(a > 15 || b > 10); // (false || true) -> true

/* NOT operator */
console.log(!(a < 15)); // !(true) -> false
console.log(!(a < 15 && b > 10)); // !(true && true) -> !(true) -> false

/* output
true
false
true
true
false
false
*/