배열 1. 선언(Declaration) const arr1 = new Array(); const arr2 = [1,2]; 2. Index Position const fruits = ['AA', 'BB']; console.log(fruits); // ["AA", "BB"] console.log(fruits[0]); // AA 3. 순회 및 검색 (Looping over an array) // for for(let i = 0; i < fruits.length; i++) { console.log(fruits[i]); } // of for(let fruit of fruits){ console.log(fruit); } // forEach fruits.forEach(function(fruit, index, arra..