How to use the abbreviation of v-on binding event in Vue

Vue.js is a popular JavaScript framework for building user interfaces. Using Vue.js can easily control a complex application, and it also allows us to better organize and manage the code. Vue.js provides many convenient functions to simplify our development, one of which is the abbreviation of v-on directive.

In Vue.js, we can use the v-on directive to bind a DOM event. When the event is triggered, we can execute a piece of JavaScript code. For example, we can bind a click event to a button, and when the button is clicked, we can execute a function to handle the event.

The method of using the v-on directive to bind events is as follows:

<button v-on:click="doSomething">Click me</button>

In the above code, we use the v-on directive to bind a click event. When the button is clicked, doSomething is called function to handle the event.

Although the above code works normally, Vue.js provides us with an easier way to abbreviate the v-on directive.

We can use the symbol @ to replace the v-on instruction, for example:

<button @click="doSomething">Click me</button>

In the above code, we use the @ symbol to bind the click event. When the button is clicked, the doSomething function is called to handle the event. It can be seen that using the @ symbol to bind events is simpler and faster than using the v-on instruction.

In addition to click events, we can also use the @ symbol to bind other events, such as keydown, keyup, mouseenter, mouseleave, etc. Using the @ symbol to bind events is completely equivalent to using the v-on directive.

Summary

The v-on directive is one of the methods of binding events in Vue.js, and it is a very important feature. However, Vue.js provides us with a more convenient way to abbreviate the v-on directive and use the @ symbol instead of the v-on directive to bind events, which allows us to develop Vue.js applications more conveniently and quickly.

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