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Learn how to filter out canceled events from JSON data while converting to HTML with JavaScript. Simple step-by-step guide!
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This video is based on the question https://stackoverflow.com/q/65101037/ asked by the user 'lowercase' ( https://stackoverflow.com/u/1408126/ ) and on the answer https://stackoverflow.com/a/65101109/ provided by the user 'Shimi' ( https://stackoverflow.com/u/4429975/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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Exclude Canceled Events from JSON to HTML: A Simple Guide

When working with JSON data pulled in from an API, you may occasionally encounter the need to filter out unwanted information. A common scenario is dealing with events, where you might want to exclude any event marked as "canceled." In this post, we will look at how to effectively achieve this using JavaScript.

The Problem

You are pulling in JSON data using an API and obtaining a list of events. The JSON structure might resemble the following:

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

The challenge arises when your script pulls in events regardless of their status. If an event has a status of "canceled", you want to ensure it is omitted from the displayed list. Instead, you only want to render events with a status of "ok".

The Original Script

Initially, your script looks something like this:

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

While this script successfully fetches events, it does not account for the event status, leaving canceled events in the output. Now, let's ensure we exclude those canceled events from our list.

The Solution: Filtering Events

To filter out canceled events, you can apply JavaScript's filter() method before the forEach() loop. This method will allow you to create an array containing only the events with a status of "ok". Here’s how you can implement this in your existing script:

Step 1: Filter Events

Insert a filtering step right after fetching the events:

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

Step 2: Update Event Processing Code

You should now handle the filtered events within the forEach() loop. This section will remain the same, only now it will not include canceled events. Make sure to handle the dates and other details as desired. Here’s a snippet of how you might continue:

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

Conclusion

By modifying your original script to incorporate filtering with the filter() method, you can easily ensure that only events with a status of "ok" are displayed in your HTML output. This not only improves the user experience by avoiding canceled events but also streamlines the data presentation.

Feel free to personalize and extend this script to meet your needs. Happy coding!