Vue Force Component To Rerender

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In this tutorial, we are going to learn about how to force update the vue component to re-render or reload with an updated UI.

Vue components automatically re-render when a component state or props is changed. like a simple state change may re-render the component with a new UI (User interface). In some cases, the vue reactivity system doesn’t enough to detect the dom changes, so that we need to force update the vue components to re-render. Vue offers us a built-in method called forceUpdate(), by using this method inside vue instance we can force update the component. Let’s see an example:. In the above example, we have attached an update method to the button element. Inside the update method we have added a this.$forceUpdate() method, so that when we click on a button, it will re-render the component with a new random number.

The mount method is used to manually connect the vue instance to the dom, which will trigger the component to re-render.

Here is an example:. Vue.js is an easy to use web app framework that we can use to develop interactive front end apps.

In this article, we’ll look ar the ways to rerender a Vue component, and which way is the right way.

The whole point of having a single page app is to not have to reload the whole page to update data.

  • Therefore, it’s bad to have the whole page reload to rerender the component.
  • For instance, we shouldn’t write anything like the following code:.

We have location.reload() which we shouldn’t call in a single-page app.

The v-if directive only renders the page only when the condition is true . If it’s false , it won’t be in the DOM. The v-if hack works by setting the v-if condition to false , and then setting it back to true on the next DOM update cycle by calling $nextTick .

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