fruits = []
fruits.push('사과')
fruits.push('바나나')
fruits.push('파인애플')
console.log(fruits) = [ '사과', '바나나', '파인애플' ]
fruits = []
fruits.push('사과')
fruits.unshift('바나나')
fruits.push('파인애플')
console.log(fruits) = [ '바나나', '사과', '파인애플' ]
fruits = []
fruits[0] = '사과'
fruits[1] = '바나나'
fruits[2] = '파인애플'
console.log(fruits) = [ '사과', '바나나', '파인애플' ]
fruits[1] = '자몽'
console.log(fruits) = [ '사과', '자몽', '파인애플' ]
// 이렇게 직접적으로 데이터를 변경하는 것은 안좋은 방법!!!!
fruits = [ '사과', '바나나', '파인애플' ]
fruits.pop()
console.log(fruits) = [ '사과', '바나나' ]
🍯꿀팁
// array.length-1 을 통해 맨 뒤의 데이터를 불러오거나 추가, 삭제할 수 있음
fruits = [ '사과', '바나나', '파인애플' ]
newFruits = []
newFruits.push(fruits[fruits.length-1])
console.log(newFruits) = [ '파인애플]
fruits = [ '사과', '바나나', '파인애플' ]
fruits.shift()
console.log(fruits) = [ '바나나', '파인애플' ]