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Vue.js で json を読み込む

Last updated at Posted at 2018-07-20

静的なデータをコンポーネントと別ファイルで管理したい時にどうぞ。

Vue-cliを使っている場合

例えばassetフォルダ内にjsonファイルを用意して、それをcomponentsフォルダ内のコンポーネントから読み込むときは以下のように書けば良い。

assets/data.json
[
  {
    "id": 1,
    "name": "hogehoge"
  },
  {
    "id": 2,
    "name": "gehogeho"
  },...
]
main.vue
import users from '../assets/data.json'

export default {
  data: () => {
     users: users
  }
}

その他の場合

axiosを使う必要があります

index.html
<script src="https://cdn.jsdelivr.net/npm/vue@2.6.10/dist/vue.js"></script>
<script src="https://unpkg.com/axios/dist/axios.min.js"></script>
<script src="./app.js"></script>
app.js
var app = new Vue({
  data: {
     items:null
  },
  mounted: function () {
    axios.get("./items.json").then(response => (this.items = response))
  }
})
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