r-在发光警报中的Mathjax

Question

是否有一种方法可以在shinyBS创建的警报中使用MathJax？下面的Attemp无法正常工作。

library(shiny)
library(shinyBS)
shinyApp(
  ui =
    fluidPage(
      sidebarLayout(
        sidebarPanel(textInput("num1", NULL, value = 100),
                     "divided by", textInput("num2", NULL, value = 20),
                     "equals", textOutput("exampleOutput")),
        mainPanel(
          withMathJax(bsAlert("alert"))
        )
      )
    ),
  server =
    function(input, output, session) {
      output$exampleOutput <- renderText({
        num1 <- as.numeric(input$num1)
        num2 <- as.numeric(input$num2)
        if(num2 == 0) {
          createAlert(session, "alert", "exampleAlert", title = "Oops",
                      content = HTML("You cannot divide by <span class='math inline'>\(0\)</span>."))
        } else {
          closeAlert(session, "exampleAlert")
          return(num1/num2)
        }
      })
    }
)

Answer 1

与op 和

中的withMathJax(bsAlert("alert"))一起使用

content = "You cannot divide by <span class='math inline'>\(0\)</span>.<script>if (window.MathJax) MathJax.Hub.Queue(['Typeset', MathJax.Hub]);</script>"

很奇怪，因为脚本包括两次。