Скачать или смотреть Download JSON Object (Array) as File from Browser using JavaScript

Learn how to enable users to download a JSON object (array) as a file directly from the browser using JavaScript. This guide covers the step-by-step process of creating a downloadable file from a JSON object and providing it to users for easy access and storage.
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In web applications, there are often scenarios where you need to enable users to download data in various formats. One common requirement is to allow users to download a JSON object (array) as a file directly from the browser. This can be achieved easily using JavaScript. In this guide, we'll cover the step-by-step process to accomplish this task.

Step 1: Prepare your JSON Object

First, you need to have a JSON object (array) that you want users to download. This JSON object can be hardcoded or fetched dynamically from an API or other data source.

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Step 2: Convert JSON Object to JSON String

Next, you need to convert your JSON object to a JSON string using JSON.stringify() method.

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Step 3: Create Blob Object

Now, create a Blob object from the JSON string. Blob stands for Binary Large Object, which represents raw data.

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Step 4: Create Object URL

Create an object URL using URL.createObjectURL() method. This URL represents the Blob object we created earlier.

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Step 5: Create Download Link

Create a download link (<a> element) and set its href attribute to the object URL we created earlier. Also, set the download attribute to specify the filename for the downloaded file.

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Step 6: Trigger Download

Finally, trigger the download by programmatically clicking the download link. This will prompt the user to save the JSON file.

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Complete Code Example

Here's the complete code example that combines all the steps mentioned above:

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With this code, users will be able to download the JSON object (array) as a file named data.json directly from their browser.

That's it! You've learned how to enable users to download a JSON object as a file using JavaScript in the browser.