https://velog.io/@gillog/Vue.js-%EB%B6%80%EB%AA%A8-%EC%9E%90%EC%8B%9D%EC%9A%94%EC%86%8C-method-%ED%98%B8%EC%B6%9C%ED%95%98%EA%B8%B0
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https://velog.io/@gillog/Vue.js-%EB%B6%80%EB%AA%A8-%EC%9E%90%EC%8B%9D%EC%9A%94%EC%86%8C-method-%ED%98%B8%EC%B6%9C%ED%95%98%EA%B8%B0