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Learn how to dynamically pull and display the first 10 elements with a specific class from an external HTML file using JavaScript.
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This video is based on the question https://stackoverflow.com/q/77711099/ asked by the user 'bedirhangn' ( https://stackoverflow.com/u/7335891/ ) and on the answer https://stackoverflow.com/a/77711501/ provided by the user 'Shahram Alemzadeh' ( https://stackoverflow.com/u/12056172/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

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How to Display the First 10 Elements from Another HTML File on Your Frontpage

Have you ever found yourself wanting to display a specific set of content from an external HTML file on your website? This is a common scenario, especially for those managing lists or collections, like movie databases. Imagine you have a file called movies.html that contains a list of movies, and you want to feature the first 10 on your main page, index.html. This guide will guide you through the process of pulling these elements efficiently and dynamically.

The Problem: Pulling Content from an External HTML File

You have a file named movies.html that looks like this:

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And you want to display the first 10 entries from this file on your index.html page so that whenever you add new movies to movies.html, they automatically show up.

The Solution: Using JavaScript to Pull and Display Content

To achieve this, we will be using JavaScript to fetch the content, filter it, and then display the desired elements on the front page. The process can be broken down into the following sections:

Step 1: Fetch the HTML from movies.html

You can use the fetch function to retrieve the contents of your movies.html file. This turns your page into a dynamic updater whenever you have new content.

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Step 2: Parse the HTML Content

Once you have fetched the HTML text, you will need to parse it so that you can manipulate it. We can create a temporary DOM element to help with this:

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Step 3: Select the Desired Elements

Now that we have the content in a format we can work with, the next step is to select the elements that we want. This can be done using the querySelectorAll method.

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Step 4: Narrow Down to the First 10 Elements

To display just the first 10 elements, we can utilize the slice method. Here’s how to do it:

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Step 5: Display the Selected Elements on Your Frontpage

Finally, you will want to append these selected elements to a section of your index.html file where they can be displayed. Assuming you have a container with an ID of movie-list, this can be accomplished as follows:

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Full Example Code

Bringing it all together, your code in index.html might look something like this:

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Conclusion

With this simple set of steps, you can dynamically pull the first 10 movie entries from movies.html and display them on your index.html. This method ensures that your homepage remains updated without manual adjustments every time you add a new movie. Happy coding!