Dash.jl下載Dash.jl源代碼下載

Dash.jl

網站數據

Version 1.5.0

下載

朱莉婭的破折號

Juila測試

在朱莉婭（Julia）創建美麗的分析應用

建立在plotly.js，react和http.jl之上，破折號將現代的UI元素（如下拉列表，滑塊和圖形）直接與您的分析朱莉婭代碼直接相關。

剛開始？查看朱莉婭用戶指南的破折號！如果您在那裡找不到文檔，請查看非官方的貢獻示例或查看Python中的演示應用程序的源代碼，然後參考Julia Syntax樣式。

其他資源

https://community.plotly.com/c/plotly-r-matlab-julia-net/julia/23
https://discourse.julialang.org/tag/dash

項目狀態

可以與Python和R組件同時生成Julia組件。有興趣參與該項目嗎？贊助是加速這樣的開源項目進度的好方法。請隨時與我們聯繫！

安裝

要安裝最近發布的版本：

pkg > add Dash

改用最新（穩定）開發版本：

pkg > add Dash # dev

用法

基本應用

 using Dash

app = dash (external_stylesheets = [ " https://codepen.io/chriddyp/pen/bWLwgP.css " ])

app . layout = html_div () do
    html_h1 ( " Hello Dash " ),
    html_div ( " Dash.jl: Julia interface for Dash " ),
    dcc_graph (id = " example-graph " ,
              figure = (
                  data = [
                      (x = [ 1 , 2 , 3 ], y = [ 4 , 1 , 2 ], type = " bar " , name = " SF " ),
                      (x = [ 1 , 2 , 3 ], y = [ 2 , 4 , 5 ], type = " bar " , name = " Montréal " ),
                  ],
                  layout = (title = " Dash Data Visualization " ,)
              ))
end

run_server (app)

然後在瀏覽器中訪問http://127.0.0.1:8050 ，以查看DASH應用程序！

基本回調

 using Dash

app = dash (external_stylesheets = [ " https://codepen.io/chriddyp/pen/bWLwgP.css " ])

app . layout = html_div () do
    dcc_input (id = " my-id " , value = " initial value " , type = " text " ),
    html_div (id = " my-div " )
end

callback! (app, Output ( " my-div " , " children " ), Input ( " my-id " , " value " )) do input_value
    " You've entered $(input_value) "
end

run_server (app)

您可以通過在callback!功能。
該對象的輸出， Input ， State對像或媒介可以Output ，輸出和輸入（及狀態，請參見下文）。
回調函數必須具有簽名(inputs..., states...) ，並提供一個返回值，其數字元素與要更新的Output數量相同。

狀態和多個輸出

 using Dash

app = dash (external_stylesheets = [ " https://codepen.io/chriddyp/pen/bWLwgP.css " ])

app . layout = html_div () do
    dcc_input (id = " my-id " , value = " initial value " , type = " text " ),
    html_div (id = " my-div " ),
    html_div (id = " my-div2 " )
end

callback! (app,
          Output ( " my-div " , " children " ),
          Output ( " my-div2 " , " children " ),
          Input ( " my-id " , " value " ),
          State ( " my-id " , " type " )) do input_value, state_value
    return ( " You've entered $(input_value) in input with type $(state_value) " ,
            " You've entered $(input_value) " )
end

run_server (app)

與原始Python語法進行比較

組件命名

Python：

 import dash

dash . html . Div
dash . dcc . Graph
dash . dash_table . DataTable

dash.jl：

 using Dash

html_div
dcc_graph
dash_datatable

組件創建

就像在Python中一樣，聲明組件的函數具有關鍵字參數，與Python相同。 html_div(id = "my-id", children = "Simple text") 。

對於宣布children組件，還有兩個額外的簽名：

(children; kwargs..)和
(children_maker::Function; kwargs...)

因此，可以為簡單元素編寫html_div("Simple text", id = "my-id") ，或者使用do語法選擇複雜元素的縮寫語法：

 html_div (id = " outer-div " ) do
    html_h1 ( " Welcome " ),
    html_div (id = " inner-div " ) do
        #= inner content =#
    end
end

應用和佈局

Python：

 app = dash . Dash ( external_stylesheets = [ "https://codepen.io/chriddyp/pen/bWLwgP.css" ])

app . layout = html . Div ( children = [....])

dash.jl：

app = dash (external_stylesheets = [ " https://codepen.io/chriddyp/pen/bWLwgP.css " ])

app . layout = html_div () do
    #= inner content =#
end

回調

Python：

 @ app . callback ( Output ( 'output' , 'children' ),
              Input ( 'submit-button' , 'n_clicks' )],
              State ( 'state-1' , 'value' ),
              State ( 'state-2' , 'value' ))
def update_output ( n_clicks , state1 , state2 ):
    # logic

dash.jl：

 callback! (app,
          Output ( " output " , " children " ),
          Input ( " submit-button " , " n_clicks " )],
          State ( " state-1 " , " value " ),
          State ( " state-2 " , " value " )) do n_clicks, state1, state2
    # logic
end