I am working with an array of objects in React JavaScript, and I need to find a way to convert it into

Currently, I am in the process of creating this JavaScript function:

export function convertArrayObjToFileDownload(data, filename, filetype = 'application/octet-stream') {
    const blob = new Blob(data, { type: filetype });
    downloadBlob(blob, filename);
}

Within this context, data actually represents a custom object array, such as 

{Client: 'My Bank', Tasks: 15, Charge Amount: '$300.00' }
.

This function serves the purpose of converting said object array into blob format, with the potential for the array to contain an extensive number of items.

javascriptarraysnpmblob

Answer №1

Almost there! Let me point out the issue:

When using the Blob() constructor, make sure to pass an Array as the first parameter:
https://developer.mozilla.org/en-US/docs/Web/API/Blob/Blob#parameters

The Array should contain a serialized form of the data you wish to save. For a JavaScript object, this is usually done by converting it to a JSON string first. Afterwards, place the string in the Blob like so:

const json = JSON.stringify(data);
const blob = new Blob([json], { type: 'text/plain;charset=utf-8' })

If storing a string, consider using the MIME type text/plain;charset=utf-8 or application/json specifically for JSON.

Once downloaded, the Blob can be easily viewed in any text editor as it is plain text.

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