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실전 코드로 배우는 Vue.js
book

실전 코드로 배우는 Vue.js

by 마야 셰빈, 정병열
October 2024
Beginner to intermediate
452 pages
9h 28m
Korean
Hanbit Media, Inc.
Content preview from 실전 코드로 배우는 Vue.js
219
CHAPTER 05
컴포지션 API
5.55.5
computedcomputed
()()
computed
프로퍼티와 마찬가지로
computed
()
또한 특정 반응형 데이터를 바탕으로 새로
운 반응형 데이터와 캐시 데이터 값을 생성한다.
ref
()
또는
reactive
()
달리
computed
()
읽기 전용
참조 객체를 반환한다. 다시 말해 값을 직접 재할당할 수 없다.
옵션
API
로 작성된 [예제
3
-
11
]을
computed
()
훅 방식으로 고치면 [예제
5
-
15
]와 같다.
예제
5-15
computed
()
방식으로 작성한
PalindromeCheck
컴포넌트
<script lang="ts" setup>
import { ref, computed } from 'vue'
const message = ref('Hello World')
const reversedMessage = computed<string>(
() => message.value.split('').reverse().join('')
)
</script>
computed
()
script
섹션에서 객체를 반환하며, 이 객체는
ref
()
reactive
()
처럼
value
프로퍼티를 통해 (
reversedMessage
.
value
) 값에 접근한다.
[예제
5
-
16
]은
computed
()
안에서 또 다른
computed ...
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Publisher Resources

ISBN: 9791169212991