What is the instruction to implement two-way data binding in vue

Use the v-model directive in Vue.js to implement two-way data binding. How it works: Bind the getters and setters of data properties. Add an event listener to monitor value changes and trigger updates. Update data attribute values, triggering update of UI values. Pros: Simplified data management. Improve code readability and maintainability. Create responsive user interfaces easily.

Instructions for two-way data binding in Vue.js

Used in Vue.jsv- modeldirective to implement two-way data binding.

How to use the v-model command:

In the above example:

• v-modelcommand Bind theelement to themessagedata attribute.
• When the user enters content in theelement, themessagedata attribute will automatically update.
• When the value of themessagedata attribute changes, the content in theelement will also be automatically updated.

Principle:

v-modelThe command does the following work behind the scenes:

• is Bound data properties establish getters and setters.
• Add an event listener to theelement to monitor value changes.
• When the value changes, theinputevent is triggered and the data attribute is updated.
• When the value of the data attribute is updated, theupdateevent is triggered and the value in theelement is updated.

Advantages:

Using thev-modeldirective to implement two-way data binding has the following advantages:

• Simplified data management.
• Improves code readability and maintainability.
• Allows the creation of responsive user interfaces easily.

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