정규식 - 3자리 숫자 마다 콤마 찍기

3자리 숫자마다 콤마 찍기

by jinam yu

HTML

<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.4.1/css/bootstrap.min.css">
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
<div id="app">
  <form class="p-4">
    <div class="form-group">
      <label >숫자를 입력해 보세요.</label>
      <input type="text" class="form-control" v-model="number" />
    </div>
    <div class="form-group">
      <input class="form-control" type="text" :value="output" readonly />
    </div>
  </form>
</div>

CSS

html, body {
  background-color: #f8f9fa;
}

Vue

new Vue({
  el: "#app",
  data: {
    number: "12345678",
  },
  computed: {
    output() {
      return this.number.replace(/\B(?=(\d{3})+(?!\d))/g, ',');
    }
  },
  methods: {},
  mounted() {}
})