Скачать или смотреть How to Refresh a Table Component from Another Component in VueJS

Learn how to effectively refresh a table component after submitting a form in VueJS, ensuring seamless interaction and data updates across components.
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This video is based on the question https://stackoverflow.com/q/65476876/ asked by the user 'Jack022' ( https://stackoverflow.com/u/10290511/ ) and on the answer https://stackoverflow.com/a/65476993/ provided by the user 'Frnak' ( https://stackoverflow.com/u/2940794/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Refresh a Table Component from Another Component in VueJS

In modern web applications, the need for components to communicate and update each other dynamically is crucial. This is especially true for frameworks like VueJS where multiple components can exist on the same page. A common use case is when a form submission needs to refresh a related table to display the latest data. If you've ever faced the challenge of how to refresh one component from another in VueJS, you're in the right place. Let's walk through the solution to this problem step by step.

The Problem

Imagine you have two Vue components: a form and a table. After filling out the form and submitting it, you want the table to display updated values. The traditional way to achieve this would be to call a function that fetches the new data from the table component after the form submission. However, you might face an issue where the table does not refresh correctly even after calling the function. This was the predicament faced in the given code example.

Code Example for Reference

Here’s a quick look at what the code structure entails:

Form Component: Responsible for capturing user data and submitting it to the server.

Table Component: Displays a list of data and needs to be updated upon successful form submission.

The Solution

To effectively refresh the table from the form component, we'll focus on how to correctly call the fetchData() method from the form submission.

Context of this

The main issue in the original code stems from the context of this within the then method of the Axios promise. When the fetchData() is called, this may not reference the Vue instance you expect. This can lead to the table not updating even when the function call is logged in the console.

Resolving the Context Issue

Option 1: Using Arrow Functions

Using an arrow function ensures that this refers to the Vue instance itself. Here’s the updated formSubmit method using arrow functions:

[[See Video to Reveal this Text or Code Snippet]]

Option 2: Using Function Bind

Alternatively, if you prefer using regular function syntax, you can ensure the correct context by binding this:

[[See Video to Reveal this Text or Code Snippet]]

Debugging and Testing

After implementing one of the two options above, test your application:

Fill in the form completely.

Submit the form.

Check the table component to see if it refreshes with the new data.

Make sure to observe console logs to ensure that your fetchData() is being called successfully.

Conclusion

By understanding how this works in JavaScript and applying either an arrow function or a bind method, you can seamlessly refresh your VueJS table component from another component. This makes your application not only more dynamic but also more user-friendly.

Happy coding! If you have further questions or run into any issues, feel free to reach out or leave a comment below.