Jan Biedermann

Hi Bo, i open this PR as long standing PR, so that you can see the changes i made for isomorfeus-iodine and that you can easily pick what you think...

add render_after_error

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as with lap20 the after_error callback is available, resembling react 16 error handling https://reactjs.org/docs/error-boundaries.html#introducing-error-boundaries a render_after_error block became possible.

add render_while_loading

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the render_while_loading block would be called when a component child is loading, as error handler implemented using after_error. Is there a better way? This is not compatible with ``` render...

A reason for slow and repeated rendering is, that `should_component_update?` when checking if params are updated may always lead true. This is due to limitations of javascript. It is recommended...

... currently is lacking. These patch sets show where things are missing in opal, or things go wrong: For Roda: https://github.com/jeremyevans/roda/compare/master...janbiedermann:roda:master For Rack https://github.com/janbiedermann/rack/commit/1dadea0f9813c2df94715052d2277af13f7d0c0c For Sinatra, Rack-Protection: https://github.com/sinatra/sinatra/compare/main...janbiedermann:sinatra:main For Mustermann:...

[WIP] Date DateTime Time ::parse improvements, implement Date::_parse

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- use common constants - implement Date::_parse - use that for Date and DateTime::parse - add a few more formats - makes 27 more specs work Still to do: -...

Make Regexp with n flag compile

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Required to compile Rack