How to introduce js files in vue

There are four ways to introduce external JS files in Vue.js: through the <script> tag. Import modular JS files through the import statement. Register JS files as Vue components through the Vue.component() method. Mix JS file code with multiple Vue components through the Vue.mixin() method. </script>

Introducing JS files into Vue.js

Vue.js provides a variety of methods to introduce external JavaScript Files, including:

1. Through the <script></script> tag

In the Vue template, you can use <script> </script> tag introduces JS files:

<script src="./my-script.js"></script>

2. Pass the import statement

For modular JavaScript files, you can pass Import statement:

import myModule from './my-module.js'

3. Use the Vue.component() method

If you need to use the JavaScript file as a Vue component To register, you can use the Vue.component() method:

Vue.component('my-component', {
  // ... 组件配置
  template: '<div></div>',
  // ... 组件方法
  created() {
    // 组件创建时执行
    this.fetchData()
  },
  methods: {
    fetchData() {
      // ... 从 JavaScript 文件中获取数据
    }
  }
})

4. Through the Vue.mixin() method

If you need to mix the code in the JavaScript file with multiple Vue components, you can use the Vue.mixin() method:

const myMixin = {
  data() {
    return {
      // ... 混合数据
    }
  },
  methods: {
    // ... 混合方法
  }
}

Vue.mixin(myMixin)

When using these methods to introduce JS files, you need to consider the following Things to note:

• Make sure the path to the JS file is correct.
• If you use modular JavaScript, you need to make sure that Babel or webpack is configured correctly.
• Choose the most appropriate introduction method according to the specific situation.

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