Owlet is a Typed Spreadsheet UI library for ScalaJS. It is built on top of Monix and Typelevel Cats to combine predefined input fields to a reactive user interface, just like what you would done in spreadsheet. Owlet is inspired by the PureScript library Flare.
Do one thing and do it well micro birds library series
1. add dependency in your
libraryDependencies += "us.oyanglul" %%% "owlet" % "<maven version>"
resolvers += "jitpack" at "https://jitpack.io" libraryDependencies += "com.github.jcouyang" % "owlet" % "<jitpact version>"
2. Now programming UI is just like using spreadsheet
import us.oyanglul.owlet._ import DOM._ val a1 = number("a1", 1) val a2 = number("a2", 2) val a3 = number("a3", 3) val sum = fx[List, Double, Double](_.sum, List(a1, a2, a3)) render(a1 &> a2 &> a3 &> sum, "#app")
val a1 = number("a1", 1) val a2 = number("a2", 2) val a3 = number("a3", 3) val sum = a1 |+| a2 |+| a3 renderOutput(sum, "#app")
eh... Ready for 3D spreadsheet programming?
You know spreadsheet is 2D, when we have monad, it became 3D
val numOfItem = int("noi", 3) val items = numOfItem .flatMap( no => (0 to no).toList.parTraverse(i => string("inner", i.toString)) )
- imagine that
numOfItemlives in dimension (x=1, y=1, z=0)
itemslive in dimension (x=1,y=1,z=1)
you can render either
items seperatly, for they live in diffenrent z axis (which means render
items you won't able to see
numOfItem even it's flatMap from there
but you can some how connect the dots with magic
renderOutput(numOfItem &> items, "#output")
Anyway, just keep in mind that monad ops
flatMap... will lift your z axis
parXXX instead, will keep them in the same z axis