* Dynamic Routes: Change impl from $param to [param]
* Update expected test snapshot
* Update test to use new syntax
* Update test file
* Test more behavior
* Update route sorter for new param syntax
* Update dynamic routing tests
* Update danging test file
* Tweak test
* Fix dev and update tests
* Move client-side dev JS to dev folder
* Move eventsource polyfill
* Move source-map-support
* Move error boundary
* Deprecate Container in _app
* Make initialRender check better
* Remove unused code
* Only support one subscription as there is only one
* Don’t spread object
* Shorten property name
* Add container in development too
* Simplify query update logic
* Run prettier over packages/**/*.js
* Run prettier over packages/**/*.ts
* Run prettier over examples
* Remove tslint
* Run prettier over examples
* Run prettier over all markdown files
* Run prettier over json files
* Initial version of build watcher working
* Move build watcher div to Main component
* Add a better design, remove container from DOM when not visible
* Fix flickering when closing and opening too fast
* Add a field on next config file for two styles and completely removal
* Ops, bring back fade-in animation
* Remove unnecessary commas
* Render building text by CSS, remove unnecessary jsx attribute
* Remove React usage
* Add support to IE/Edge
* Fix linter issues
* Set custom property with data attribute
* Use ondemand: 1 to don't override current listeners
* Use more strict rules to avoid outside CSS effects
* Use lighter box shadow
* Fix registering HMR callback
* Move initializing build watcher to client/next-dev
* Remove buildWatcherStyle and only use minimal
* Move build watcher element to render
* Move it to create element on initialize
* Fix type error from canary
* Remove extra log
* Simplify SVG markup
This PR aims at replacing next-server/lib/event-emitter.js by mitt.
Fix https://github.com/zeit/next.js/issues/4908
event-emitter.js is ~400 bytes gzipped vs mitt is 200 bytes
Resolves#4055
Credit: https://github.com/zeit/next.js/pull/5095
I didn't use the ignore webpack plugin from the original PR and tested bundle size with https://github.com/zeit/next.js/pull/5339 - seems to be safe on that front.
Was able to get tests to pass locally, unsure of what goes wrong in CI 🤷♂️
**Questions**
1) The initial PR didn't include changes to `next-server/lib/router` in `getRouteInfo()`. Should the same changes be made within?
2) Should we add a test for rendering a component created via `forwardRef()`?
`component-with-forwardedRef`:
```javascript
export default React.forwardRef((props, ref) => <span {...props} forwardedRef={ref}>This is a component with a forwarded ref</span>);
```
some test:
```javascript
test('renders from forwardRef', async () => {
const $ = await get$('/component-with-forwardedRef')
const span = $('span')
expect(span.text()).toMatch(/This is a component with a forwarded ref/)
})
```
- Replaces taskr-babel with taskr-typescript for the `next` package
- Makes sure Node 8+ is used, no unneeded transpilation
- Compile Next.js client side files through babel the same way pages are
- Compile Next.js client side files to esmodules, not commonjs, so that tree shaking works.
- Move error-debug.js out of next-server as it's only used/require in development
- Drop ansi-html as dependency from next-server
- Make next/link esmodule (for tree-shaking)
- Make next/router esmodule (for tree-shaking)
- add typescript compilation to next-server
- Remove last remains of Flow
- Move hoist-non-react-statics to next, out of next-server
- Move htmlescape to next, out of next-server
- Remove runtime-corejs2 from next-server
* Move __NEXT_DATA__ into a application/json script tag
As outlined by @dav-is here https://github.com/zeit/next.js/pull/4943
* Set __NEXT_DATA__ for backwards compatability
Clears the way a bit for #4943, also makes _document.js less complex, and will allow us to move `__NEXT_DATA__` to a `application/json` script tag.
Also this causes a slightly smaller bundle size 😌
