FunScript轻量级的 F# 库
FunScript 是一个轻量级的 F# 库,可以让你快速开发单页 Web 应用。你可以连接到外部数据源并调用 REST API,生成面板,使用 JavaScript 可视化库,编写异步计算。
示例代码:
// Allow access to the F# AST
[<ReflectedDefinition>]
module Sample
open FSharp.Data
open FunScript
open FunScript.TypeScript
// Access standard JavaScript libraries in a type-safe way.
// Generate strongly-typed interfaces from TypeScript 0.9.x
// definitions files or use any of the 280+ pre-built library
// mappings (hosted on NuGet).
#r "FunScript.TypeScript.Binding.lib.dll"
#r "FunScript.TypeScript.Binding.jquery.dll"
#r "FunScript.TypeScript.Binding.highcharts.dll"
// Integrate REST APIs with F# 3.0 type providers
type WorldBank = WorldBankDataProvider<Asynchronous=true>
let data = WorldBank.GetDataContext()
// Get full type checking for external data sources!
let countries =
[ data.Countries.Denmark
data.Countries.``Czech Republic``
data.Countries.``United Kingdom``
data.Countries.``United States`` ]
// Easily define strongly-typed Foreign Function Interfaces
// (FFIs) to access unmapped functions
[<JSEmitInlineAttribute("({0} * 1.0)")>]
let number(x : int) : float = failwith "never"
// Write asynchronous computations without callbacks
let render () = async {
let chart = createEmpty<HighchartsOptions>()
chart.series <- [| |]
for country in countries do
// Access data sets in a statically typed way
let data = country.Indicators
let! l = data.``School enrollment, tertiary (% gross)``
// Add line series to the chart
let seriesOpts = createEmpty<HighchartsSeriesOptions>()
seriesOpts.name <- country.Name
seriesOpts.data <-
[| for t, y in l -> [| number t; y |] :> obj |]
// Use a standard library function
// through ...Binding.lib.dll
chart.series.pushOverload2 seriesOpts |> ignore
}评论
