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JavaScript/Vue

[Vue.js] watch

by ์ฝ”๋”ฉํ•˜๋Š” ๋ถ•์–ด 2022. 6. 6.
๋ฐ˜์‘ํ˜•

watch๋Š” ๋ฐ์ดํ„ฐ ๋ณ€ํ™”๋ฅผ ๊ฐ์ง€ํ•˜์—ฌ ์ž๋™์œผ๋กœ ํŠน์ • ๋กœ์ง์„ ์ˆ˜ํ–‰ํ•œ๋‹ค.

๋ฐ์ดํ„ฐ ํ˜ธ์ถœ๊ณผ ๊ฐ™์ด ์‹œ๊ฐ„์ด ์ƒ๋Œ€์ ์œผ๋กœ ๋” ๋งŽ์ด ์†Œ๋ชจ๋˜๋Š” ๋น„๋™๊ธฐ ์ฒ˜๋ฆฌ์— ์ ํ•ฉํ•˜๋‹ค.

 

<!DOCTYPE html>
<head>
  <title>watch</title>
</head>
<body>
  <div id="app">
    <input v-model="message">
  </div>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
  <script>
    new Vue({
      el: '#app',
      data: {
        message: 'Hello Vue.js!'
      },
      watch: {
        message: function(data) {
          console.log('message์˜ ๊ฐ’์ด ๋ฐ”๋€๋‹ˆ๋‹ค : ', data)
        }
      }
    })
  </script>
</body>
</html>

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