Vue.js is a leading JavaScript library that’s highly in-demand in the world of development today. A common functionality used in Vue.js is form submission, and a common challenge encountered is how to prevent the default event.
Developers often need to prevent the default submit event on a form to stop the page from refreshing. Vue.js has provided developers with a simple, yet elegant way of doing this. This can be easily done through the `v-on:submit.prevent` modifiers.
Vue.js is a progressive JavaScript framework and is incredibly flexible and easy to pick up, making it equally suitable for small scale applications as well as large scale applications.
<form v-on:submit.prevent="onSubmit"> ... </form>
In the Vue.js instance, the `onSubmit` method is defined, which will be triggered when the form is submitted.
new Vue({
el: '#app',
methods: {
onSubmit: function () {
console.log('Form Submitted!');
}
}
});
v-on:submit.prevent in Vue.js
This powerful directive in Vue.js is typically called a modifier which indicates that the `.prevent` will prevent the default browser event from being fired. This is similar to calling `event.preventDefault()` in vanilla JavaScript.
The `v-on:submit` will bind an event listener for the submit event on the form. When the form is submitted, it fires the function specified, in this example the `onSubmit` method inside the Vue.js instance.
Deep dive into Vue.js Events
Event handling is a fundamental aspect of Vue.js and every modern client-side JavaScript framework. They enable interaction between the user interface and the underlying logic of the application.
Vue.js provides a `v-on` directive for attaching event listeners to the DOM. This directive can be used in several ways, such as handling click events, keyboard events, form events etc. The `.prevent` is one of the event modifiers provided by Vue.js.
Through this article, you should now have a good understanding of how to use the Vue.js `v-on:submit.prevent` to handle form submission events, replacing the default action with custom functionality. Having the necessary understanding and knowledge of this aspect in Vue.js will without a doubt prove beneficial while developing complex interactive web applications.
