The goal of react is to help with reactivity, instead of calling the foo reactive expression foo() you can call react$foo similar to how one calls input$bar for inputs, or alternatively react[foo] or react[foo()].
The benefit is that it makes it easier to spot calls to reactive expressions in your server code.
InstallationYou can install the development version of react from GitHub with:
ExamplesTake this from the shiny example:
With react you can rewrite the plot output as one of these, depending on your taste.
# react$ is similar conceptually to how input$ works
output$plot <- renderPlot({
chartSeries(react$dataInput, theme = chartTheme("white"),
type = "line", log.scale = input$log, TA = NULL)
})
# react[]
output$plot <- renderPlot({
chartSeries(react[dataInput], theme = chartTheme("white"),
type = "line", log.scale = input$log, TA = NULL)
})
# react[()] so that you still have the calling a function feel
# and you just sourround it
output$plot <- renderPlot({
chartSeries(react[dataInput()], theme = chartTheme("white"),
type = "line", log.scale = input$log, TA = NULL)
})
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