Скачать или смотреть How to Iterate for Array Content Inside Object with ngFor in Angular?

Learn how to effectively display array content from objects using `ngFor` in Angular by joining array values into a string for easy display in your Bootstrap table.
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How to Iterate for Array Content Inside Object with ngFor in Angular?

When working with Angular and displaying data from an API, you might encounter situations where you need to retrieve and display array content that's nested within an object. This particular scenario can be tricky, especially when you want to show that array in a format that fits within a table structure, like a Bootstrap table. Let’s dive into understanding how to manage this effectively using ngFor.

The Problem: Displaying Nested Array Content

Imagine you are working with a dataset returned from an API that looks something like this:

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

This data contains games with several attributes: name, playtime, genre, and platforms, where platforms is an array listing the platforms available for that game. When you try to display this data in a Bootstrap table, you might run into an issue where the platforms content does not display as expected.

The Issue in the Code

In your current table structure, you might have something like this:

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

While the other game attributes display correctly, the platforms array isn't shown as you might expect. This leads to the question: "How can we display the contents of the platforms array in our table?"

The Solution: Joining Array Values

To display the platforms array content in a user-friendly way within your Bootstrap table, you can join the array elements into a single string. You do this using the join() method available in JavaScript. Here's how you can modify your code:

Updated HTML Code

Replace the line displaying the platforms array with the following:

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

Full Example

Your complete table code will look like this:

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

Explanation of Changes

join(', '): This method takes all elements from the platforms array and combines them into a single string, separated by commas. This way, when your table is rendered, users will see the platforms listed neatly as "PC, Android" instead of an unreadable array structure.

Conclusion

With this simple modification, you can effectively display array content nested within objects in your Angular application using ngFor. By utilizing the join() method, you ensure a clear and user-friendly presentation of your data in a table format. Now, users can easily see all the platforms available for each game, improving the usability of your application.

By following these guidelines, you'll enhance the overall user experience and keep your interface clean and informative.