Скачать или смотреть How to Filter Data in Angular

Discover how to easily filter hotel data by star rating in Angular. This step-by-step guide is perfect for beginners looking to enhance their web application.
---
This video is based on the question https://stackoverflow.com/q/74582881/ asked by the user 'Beth McCoy' ( https://stackoverflow.com/u/14721856/ ) and on the answer https://stackoverflow.com/a/74585182/ provided by the user 'Satsangpriyadas Swami' ( https://stackoverflow.com/u/9677279/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Filtering data using angular

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
How to Filter Data in Angular: A Beginner's Guide

If you're diving into Angular development, you may find yourself needing to filter data to enhance your user experience. One common use case is filtering a list of hotels by their star rating. Here, we'll walk you through the steps to implement this feature in your Angular application.

Understanding the Problem

You're building a webpage that displays a list of hotels. However, you want to allow users to filter these hotels based on their star ratings. This requirement can seem a bit daunting at first, especially if you're new to Angular, but with the right guidance, you can implement this functionality effectively.

How to Filter Data in Angular

Let's break down the task into manageable parts. We will need to:

Fetch the Hotel Data from a web service.

Store and Display the Data in a structured format.

Implement the Filtering Logic based on the star ratings.

Step 1: Set Up Your Component

You likely already have a component set up to manage your list of hotels. Below is a brief overview of what your hotels.component.ts file should look like.

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

Step 2: Fetching Hotel Data

In the WebService, you retrieve the hotel data from your API. Ensure your implementation of getHotels in web.service.ts looks something like this:

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

Step 3: Displaying the Data

In your hotels.component.html, you will need to display the filtered list of hotels. Here’s a snippet of how this might look:

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

Step 4: Implementing the Filter

You can create a filter interface in your HTML where users can select their desired hotel ratings. When a user selects a rating, you call the respective filter function.

For example, add a filter button like this:

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

Wrapping Up

Filtering data in Angular involves fetching the data from a service, storing it appropriately, and implementing filtering logic based on user inputs. In this guide, we provided detailed steps to set up a basic hotel listing feature that allows you to filter by star rating. With these patterns and practices, you're well on your way to creating dynamic and responsive Angular applications.

By mastering data filtering, you can enhance user experiences and make your applications more user-friendly. Happy coding!