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Description

Benchmarks: write in Scala or JS, run in your browser.

See an online demo here: https://japgolly.github.io/scalajs-benchmark/. The tiny source code is here: gh-pages/demo.

Programming language: Scala
Tags: Tools     Scala.js     Benchmarking    

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README

scalajs-benchmark

Build Status

Benchmarks: write in Scala or JS, run in your browser.

See an online demo here: https://japgolly.github.io/scalajs-benchmark/. The tiny source code is here: gh-pages/demo.

[Changelogs](doc/changelog) — [Latest: 0.2.6](doc/changelog/0.2.6.md).

How do I use it?

  1. Include scalajs-benchmark as a dependency in your Scala.JS project.

    libraryDependencies += "com.github.japgolly.scalajs-benchmark" %%% "benchmark" % "0.2.6"
    
  2. You write benchmarks.

    import japgolly.scalajs.benchmark._, gui._
    

object Example { val suite = GuiSuite( Suite("Example Benchmarks")(

    // Benchmark #1
    Benchmark("foreach") {
      var s = Set.empty[Int]
      (1 to 100) foreach (s += _)
      s
    },

    // Benchmark #2
    Benchmark("fold") {
      (1 to 100).foldLeft(Set.empty[Int])(_ + _)
    }
  )
)

}


  *(Hey, can you make that `1 to 100` configurable in the GUI? [You sure can.](https://github.com/japgolly/scalajs-benchmark/blob/master/demo/src/main/scala/demo/suites/example/Examples.scala))*

1. Add a tiny loader HTML [like this](demo/scala212-full.html).

1. Create a `JSApp` and point `scalajs-benchmark` at your suite of benchmarks.

  ```scala
  import org.scalajs.dom.document
  import japgolly.scalajs.benchmark.gui.BenchmarkGUI

  object Main extends scalajs.js.JSApp {

    def main() = {
      val body = document getElementById "body"
      BenchmarkGUI.renderSuite(body)(Example.suite)
    }
  }

If you have a library of different benchmarks, instead of using renderSuite, you use renderMenu to create an app that lets the user navigate the library and run benchmarks.

Example:

  BenchmarkGUI.renderMenu(body)(
    suites.example.Examples.all,
    suites.scala.all)
  1. Compile; run in browser. Done.

Support

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Note: This is not affiliated with the official Scala.JS project; it's just named to be informative rather than interesting.