How to use v-on:click.self in Vue to trigger events only by yourself

Vue is a popular front-end framework that is simple, efficient, and easy to maintain, and is deeply loved by developers. In Vue, we often need to bind events to components or elements to achieve specific interactive effects, but sometimes we want the event to be triggered only by itself, without interference from other factors. So how to use v-on:click.self in Vue to trigger events only by yourself? This article will give you detailed answers.

First of all, we need to understand the basic usage of the v-on instruction. The v-on directive is used to bind events and is often used to monitor user mouse clicks, keyboard input, data changes and other behaviors. The syntax format is:

v-on:事件名称=“处理函数”

Among them, the event name refers to the type of event to be monitored, for example, click represents the user's mouse click event; the processing function is the response to the event, which can be a directly executed expression or a Method name. For example:

<button v-on:click=“showMessage”>点击我</button>

This code will bind a click event to the button element. When the user clicks the button, Vue will call the showMessage method in the component.

Next, we introduce how to use v-on:click.self to trigger events only by itself. The v-on:click.self directive is used to bind the "click" event of the element itself, that is, the event will only be triggered when the user clicks on the element itself, and other triggering elements will not respond. The syntax format is:

v-on:click.self=“事件处理函数”

For example:

<button v-on:click.self=“showMessage”>点击我</button>

This code binds a "click" event to the button element, but the event will only be triggered when the user clicks the button itself. Other click events will not respond. In Vue, v-on:click.self is often used to handle event conflicts between parent and child components.

If you want some specific elements not to trigger events bound to v-on:click.self, you can do this by adding the v-on:click.stop directive to the element. For example:

<button v-on:click.self=“showMessage” v-on:click.stop>点击我</button>

This code means that when the user clicks the button, not only will the "click" event of any other element not be triggered, but the v-on:click.self event of the button itself will not be triggered.

To sum up, using the v-on:click.self directive allows events to be triggered only when the element itself is clicked, avoiding event conflicts caused by other factors and improving the efficiency of Vue applications. interactive effects. At the same time, through the use of the v-on:click.stop instruction, you can further control the delivery of events and achieve complex interactive effects.

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