Usage of methods in vue

Methods in Vue.js are objects that define component methods and are used to create custom functions that can be called by templates or other methods. It provides reusability, readability, and testability.

Usage of methods in Vue.js

What are methods?

methods is an object used to define component methods in Vue.js. It allows you to create custom functions that can be called from the component's template or other methods.

How to use methods?

In Vue.js components, you can define methods through the methods option:

<code class="javascript">export default {
  methods: {
    // 方法定义
  }
}</code>

Method definitions use the following syntax:

<code class="javascript">methodName() {
  // 方法体
}</code>

Benefits of methods:

• Reusability: Methods can be called by multiple parts of the component, thus avoiding duplication of code.
• Readability: Defining methods in a centralized object makes the code easier to understand and maintain.
• Testability: Independent of templates, methods can be easily unit tested. Example of

methods:

The following is a method defined in methods named greet Example of:

<code class="javascript">methods: {
  greet() {
    alert('Hello, world!');
  }
}</code>

Then you can call this method in the component's template:

<code class="html"><button @click="greet">Greet</button></code>

When the user clicks the button, the greet method will be called, showing An alert box.

Please note that the methods in methods have access to the component's data and lifecycle hooks.

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