what is blob in javascript

A Blob (Binary Large OBject) in JavaScript represents a block of arbitrary data. Blobs are typically used to store binary data, such as images, videos, or other multimedia content. Here is an example of creating a Blob object in JavaScript:

index.tsx
// Create an array of data
var data = ['Hello, World!'];

// Create a Blob with the data and specify the MIME type
var blob = new Blob(data, { type: 'text/plain' });

// Use the Blob object as needed
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In the above example, a Blob object is created using the Blob constructor by passing an array of data and specifying the MIME type. Blobs can be used for various purposes, such as creating downloadable files, uploading files, or working with binary data in JavaScript.