showspecintab() - abudaan/vega-multi-view GitHub Wiki
// @flow
showSpecInTab(SpecType)
You can also import a utility function that prints the spec in JSON format to a new tab:
import { showSpecInTab } from 'vega-multi-view';
import spec from '../specs/my-spec';
button.addEventListener('click', () => {
showSpecInTab(spec);
});