What is the role of v-model in vue

The v-model directive in Vue provides a two-way data binding function, which enables the value of the input element to be synchronized to the data attribute of the Vue instance in real time, and vice versa, simplifying form data processing and improving code readability. and maintainability, reducing code for manually updating data attributes.

The role of v-model in Vue

v-model is a very important instruction in Vue.js , which provides a two-way data binding function for input elements, that is, the value of the element is synchronized in real time with the data attribute corresponding to the Vue instance.

Principle of operation

v-model binds the value attribute of the input element to the data attribute of a Vue instance. When the user changes the value of an input element, the Vue instance's data properties are updated. Similarly, when the data attribute of the Vue instance changes, the value of the input element bound to it will be automatically updated.

Usage

v-model can be used for various types of input elements, including:

• ##
• <code></code>

The basic syntax for using v-model is as follows:

<input v-model="propertyName">

Among them,

propertyName is the data attribute name of the Vue instance.

Advantages

Using v-model has the following advantages:

Simplifies the processing of form data
• Improved Code readability and maintainability
• Reduced code for manually updating data attributes

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