How to Display JSON Data in a Table Format using Angular

A step-by-step guide on how to display JSON key-value data in a table format in Angular applications. Learn how to parse JSON and utilize Angular directives for efficient data rendering.
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How to Display JSON Data in a Table Format using Angular

If you've been working with Angular, you might have encountered a scenario where you need to display data retrieved in JSON format from a backend service in a visually appealing and organized way. In this guide, we will guide you through the process of converting JSON key-value data into a table format in an Angular application.

The Problem

Here’s a common situation: You’ve successfully fetched non-null JSON data from your backend and now need to display it in a user-friendly table format. Below is an example of the JSON structure you might have:

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

The Solution

To display the above JSON data in a table using Angular, we need to follow these steps:

Step 1: Parse the JSON Data

First, we need to convert the JSON string into a JavaScript object. This is how you can do it:

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

This step is crucial if the JSON data is in string format. However, if you receive the JSON response directly through Angular's HTTPClient with responseType: 'json', this parsing is automatically handled for you.

Step 2: Extract the Data for the Table

Next, we need to extract key values that we want to display in our table. We can easily do this with:

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

Step 3: Build the HTML Table

Now, let's create the table structure within your Angular component's HTML. Here is what your HTML code should look like:

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

Explanation of the HTML Code:

*ngFor="let data of rows": This Angular directive is used to repeat the table row for each entry in the rows array.

Interpolation ({{ }}): The double curly braces are used to bind the JavaScript expressions to HTML elements, thus displaying dynamic data.

Final Thoughts

Now you have a fully functional Angular component that dynamically displays JSON data in a table format.

Key Takeaways:

Remember to handle JSON parsing carefully — Angular can simplify this when using the HTTPClient.

Use Angular's structural directives effectively to map through data for your tables.

By following the steps outlined, you will be able to easily display any JSON data in a structured table format in your Angular applications.

If you have any questions or need further clarification, feel free to reach out in the comments!