What are the functions of el-input?

The el-input component is an input component used primarily to receive text input from users. It serves the following purposes:

1. Obtain user input: the el-input can be used to get the text content that the user enters in the input box.
2. Data binding: The el-input can be bound bidirectionally with the data in the Vue instance. When a user inputs text in the input box, the data in the Vue instance will automatically update; likewise, if there is a change in the data in the Vue instance, the content in the input box will also update accordingly.
3. Form validation: The el-input provides several properties and methods that make it easy to validate forms. For example, you can limit the maximum number of characters in the input box by setting the maxlength property, or define custom validation rules by setting the rules property.
4. Customizing the input box style: el-input offers a variety of style and configuration options, making it easy to customize the appearance and interactive effects of the input box. For example, you can set the size of the input box, border style, placeholder text, and more.

In general, the el-input is a very commonly used component that can be used in various scenarios where user input text is needed, such as login forms, search boxes, comment input boxes, etc.