The role of script in vue

In Vue.js, the <script> tag is used to: define component logic: life cycle hooks, methods, and computed properties. Define component data: data attribute. Integrate with HTML templates via directives.

The role in Vue.js

In Vue.js, <script> The role of tags is very important. It is the core of writing component logic and defining data.

Main functions:

• Define component logic:
  <script> Label contains components logic, such as lifecycle hooks, methods, and computed properties. This logic defines how the component behaves and interacts with data.
• Define component data:
  <script> The tag is also used to define the data of the component, including the component's data attribute, which contains the data that needs to be tracked and maintained data.
• Integration with HTML templates:
  The <script> tag is used together with the <template> tag, &lt The logic defined in ;script> is integrated with the HTML template in <template> through directives such as v-bind and v-on.

Structure:

##<script> The structure of the tag is as follows:

<code class="html"><script>
  export default {
    // 组件逻辑和数据
  }
</script></code>

• export default: means that the <script> tag defines the Vue component and exports it through export default.
• {}: Contains the logic and data of the component.

Example:

<code class="html"><script>
  export default {
    data() {
      return {
        message: 'Hello, Vue!'
      }
    }
  }
</script></code>

In this example, the

<script> tag defines a Vue component with message data attribute and has a data method that returns the string "Hello, Vue!".

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