Скачать или смотреть Filtering Records by Multiple Categories with Vue.js

Learn how to effectively filter JSON data by multiple categories in Vue.js using practical examples and code snippets.
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Filtering Records by Multiple Categories with Vue.js

Filtering records based on user selections is a common requirement in web applications, especially when dealing with large datasets. When it comes to using Vue.js, this can be achieved efficiently, leveraging its powerful ecosystem. This guide will guide you through the process of filtering JSON data by multiple categories in Vue.js, particularly using Vue 3 and the collect.js library.

The Problem

Imagine you have an application that displays a list of projects. Each project falls under multiple categories, and you want users to be able to filter these projects based on their selected categories. This feature enhances user experience by allowing them to find relevant projects easily.

Sample Data Structure

For this example, our projects and categories data structure looks like this:

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

The Solution

To implement category filtering in Vue, we first need to structure our component appropriately. We'll create a multi-select dropdown to allow users to select multiple categories, and a computed property to filter the projects based on these selections.

Step 1: Set Up the Template

Here's an example of the template you can use:

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

Step 2: Script Configuration

Next, we will set up the script with data properties and computed properties. The filteredProjects computed property will be responsible for filtering the projects based on the selected categories.

Here’s how to structure your script:

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

Step 3: Adjust for Multiple Categories

If a project can have multiple categories, your code will need a slight adjustment, as shown below. Instead of checking for a single category, we will now check if each selected category is present in the project's categories.

Instead of this line:

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

You will replace it with this:

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

Conclusion

Now you have a functional component that allows users to filter projects based on multiple categories in Vue.js. The efficient use of Vue's reactivity system combined with utility functions from collect.js makes the filtering process not only seamless but also effective.

Implementing such a feature enhances the usability of your application significantly, making it easier for users to navigate through a potentially vast array of options. Happy coding!