v2.0.0-alpha.4 – Improved Release Output

We now ship both ts and js files to npm packages.

All compiled js files, both bundled (vega-lite.js and vega-lite.min.js) and TS compiler's output, are under build/.

If you wish to do local import of a particular file, please import from build/src from dependent projects (both JS and TS).

For example, to import Channel, you can import like this (diff showing traditional import)

+import {Channel} from 'vega-lite/build/src/channel';
-import {Channel} from 'vega-lite/src/channel';

For dependent TS projects, this approach has multiple benefits:

1. Users can do npm link vega-lite in a dependent project. TS compiler will no longer import TS files rather than JS files from linked project. (.ts files have high precendence than .js files.)

2. Source map will still work when users try to debug lines in Vega-Lite.