Demonstrates how to post form data and process a JSON response using
JavaScript. This allows making requests without navigating away from the
page. Demonstrates using fetch, XMLHttpRequest, and
jQuery.ajax. See the Flask docs about JavaScript and Ajax.
$ python3 -m venv .venv
$ . .venv/bin/activate
$ pip install -e .
$ flask --app js_example run
Open http://127.0.0.1:5000 in a browser.
$ pip install -e '.[test]'
$ coverage run -m pytest
$ coverage report