Run npm install to set up the environment.
Run npm start to point your browser to https://localhost:3000/ to verify the example page works.
Run npm test to run the test suite.
Run npm run ci:test to run the tests that ci runs.
Run npm run test:watch to run the test suite while you work.
Run npm run test:coverage to run the test suite with coverage report.
Run npm run lint to run the linter and check code styles.
Run npm install && npm run build && npm run test:es-check:es5 && npm run test:es-check:es2015:module to check for JS incompatibility.
See .circleci/config.yml for additional checks that might be run as part of circleci integration tests.