What happens in a web browser when a download is started via Javascript?

1. How to start download in JavaScript?
2. How to detect file download in JavaScript?
3. How to trigger a file download in JavaScript?

How to start download in JavaScript?

href = URL. createObjectURL(file); link. download = file.name; // It needs to be added to the DOM so it can be clicked document.

How to detect file download in JavaScript?

There are four known approaches to dealing with detecting when a browser download starts: Call fetch(), retrieve the entire response, attach an a tag with a download attribute, and trigger a click event. Modern web browsers will then offer the user the option to save the already retrieved file.

How to trigger a file download in JavaScript?

The addeventListener() is utilized to trigger an event and download a JavaScript. txt file.