How to Filter a JSON Array by View Count and Duration

Learn how to filter a JSON array in JavaScript to find the video with the highest view count that is at least 60 seconds long. Follow our comprehensive guide with code snippets and explanations.
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Filtering a JSON Array by View Count and Duration

When working with video data, it’s often necessary to filter content based on specific criteria. One common scenario is finding the video with the highest view count that meets a minimum duration requirement. In this guide, we'll walk you through how to filter a JSON array in JavaScript to achieve this objective, specifically targeting videos that are at least 60 seconds long.

The Problem Explained

Imagine you have a JSON array containing details about various videos. Each video has a view count and a duration in seconds. The challenge is to determine which video has the highest view count while also ensuring that its duration is at least 60 seconds. If the video with the highest view count falls short of this time requirement, the result should not be undefined.

Example JSON Structure

Here’s what the JSON data looks like for our videos:

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

The Solution

To tackle this issue, we will use JavaScript's array methods, such as filter, map, and reduce. Below, we will explore two effective methods to find the desired video.

Filter out videos shorter than 60 seconds.

Map the filtered videos to their view counts.

Find and return the corresponding video.

Here’s a code snippet doing just that:

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

Method 2: Using reduce for a Single Iteration

An alternative approach is to use the reduce function. This method allows you to iterate over the array just once, while storing the best candidate found thus far.

Iterate through the videos with reduce.

Check for the duration condition.

Keep track of the video with the highest view count.

Here’s how it looks in code:

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

Conclusion

By mastering these JavaScript techniques, you'll be better equipped to handle data filtering challenges in your projects. Happy coding!