Vue input cannot go in

Preface

When using Vue for development, sometimes you will encounter a situation where text cannot be entered in the input box. This situation is relatively common, but the causes vary. In this article, I will explain why the input box cannot be entered and provide effective solutions.

The reason why the Vue input box cannot be input

1. Data two-way binding problem

The two-way data binding provided in Vue is the core of the framework One of the characteristics. This feature allows us to easily associate templates with data structures so that the data in the template can be automatically updated. However, if you accidentally make a mistake when using two-way binding, it will cause the input box to be unable to enter.

Incorrect way of writing:

<input v-model="message">

Correct way of writing:

<input :value="message" @input="message = $event.target.value">

2. v-bind command problem

v-bind command is OK Binding the data in the vue instance to the attributes of the HTML element is very common in vue. However, if a syntax error occurs when specifying an attribute, it will cause the input box to be unable to enter.

Incorrect way of writing:

<input v-bind:value={{text}}>

Correct way of writing:

<input v-bind:value="text">

3. Event handling function problem

We usually use v-on Directives to handle DOM events. However, sometimes some syntax errors are made in the event handler function, which also causes the input box to be unable to be entered.

Incorrect way of writing:

<input v-on:input="handleInput();" />

Correct way of writing:

<input v-on:input="handleInput" />

Solution

1. Check data binding

If the input box cannot be entered, please check the data binding. You need to ensure that the data source bound to the input box matches the data in the vue instance.

2. Check the command syntax

If the input box cannot be entered, please carefully check whether the syntax of the v-bind and v-on commands is correct.

3. Check the event handling function

If the input box cannot be entered, please check the event handling function for syntax errors. You need to ensure that the syntax of each event handler function is correct.

4. Other issues

If the above solutions do not solve the problem, you need to consider that there may be other issues in the project. It is recommended to check whether the dependencies and plugins in the project are compatible with vue.

Summary

In the vue development process, it is a common problem that the input box cannot be input. However, the root cause of the problem can be many. When solving problems, we need to carefully understand the characteristics and syntax rules of Vue, and carefully search for possible sources of problems. But whatever the reason, we can fix it with some basic solutions.

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