What does el in vue mean?

el is an option in Vue.js that specifies mounting DOM elements. Its functions include: DOM mount point, specifying the location where the Vue instance creates and manages DOM elements. Life cycle management, the Vue instance life cycle is bound to the el element life cycle. Data binding, the HTML in the el element can be bound to Vue instance data to achieve dynamic DOM updates.

What is el

#el in Vue.js?

el is an option in Vue.js that specifies the element in the DOM to which the Vue instance is mounted.

The role of el

1. Mount point of DOM elements: It specifies where the Vue instance will create and manage DOM elements s position.
2. Life cycle management: The life cycle of the Vue instance is bound to the life cycle of the el element. When the el element is created or destroyed, the Vue instance will also go through the corresponding life cycle hook.
3. Data binding: The HTML within the el element can be bound to data in the Vue instance, allowing dynamic updates to the DOM.

How to use el

When creating a Vue instance, you can use the el option to specify the DOM element to be mounted:

<code class="javascript">const app = new Vue({
  el: '#app'
});</code>

where , '#app' is the ID of the DOM element to be mounted.

Note

• el option must be an existing DOM element.
• Vue instances can only be mounted to one DOM element. The HTML within the
• el element can contain template syntax, allowing further data binding and interaction.

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