Function convertBlobToBase64

Converts a Blob object into a Base64-encoded string.

Returns

A Promise that resolves to the Base64 string representation of the blob.

Example

const blob = new Blob(['Hello, world!'], { type: 'text/plain' });
const base64 = await convertBlobToBase64(blob);
console.log(base64); // → 'SGVsbG8sIHdvcmxkIQ=='

Remarks

• Internally uses FileReader.readAsDataURL to serialize the blob.
• The returned Base64 string excludes the data URL prefix (e.g., data:text/plain;base64,).
• The promise is rejected if the blob cannot be read.