[JS] Arrow Flight JavaScript Client or Example

Is it possible to use Apache Arrow Flight to send data from a Python Web Server to a JavaScript browser client? If it is possible, is there a code example to use to get started? 

If this is not possible, what is the fastest way to send data from a Python Web Server to Apache Arrow in the browser today? Would it be faster to send a Parquet file and unpack it client-side, or send Arrow directly/with gzip/ etc.?

**Reporter**: [Alex Monahan](https://issues.apache.org/jira/browse/ARROW-9860)

_{**Note**: *This issue was originally created as [ARROW-9860](https://issues.apache.org/jira/browse/ARROW-9860). Please see the [migration documentation](https://github.com/apache/arrow/issues/14542) for further details.*}