https://youtu.be/BUAhpB3FmS4 1) Ternary Operator (삼항 연산자) /** Ternary Operator */ { // 💩Bad code { function getResult(score) { let result; if (score > 5) { result = "👍"; } else { result = "👎"; } return result; } console.log(getResult(6)); } // ✨ { function getResult(score) { return score > 5 ? "👍" : "👎"; } console.log(getResult(6)); } } 2) Nullish coalescing operator ( + OR 논리 연산자와의 차이) /** Null..