Shiny apps_issue with decimal point/comma

[Loïc Decrey]

Hi there,

I have an issue with decimal point/comma while putting my app online:

When I do runApp() and enter numbers  with decimal point in numericinput() boxes, it is OK!
But when I open the app in Firefox ('Open in Browser'), it suddenly requires that I enter numbers with decimal comma and if I do not so, it will not recognize the numbers anymore...

Any ideas, how to fix that problem?

Thanks a lot

Best regards

Decrey Loïc

[Tareef Kawaf]

I wonder if this is an issue you can reproduce on a local machine and as such might be more of a shiny issue than a shinyapps.io issue.  Do you have a simple example that illustrates the problem?

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[Winston Chang]

A number input in Shiny adds something like this to the web page:

  <input type="number">

And the interpretation of dots and commas in numbers depends on the browser and locale.

This article discusses the issue. It sounds like the behavior varies a lot between different browsers:

https://www.slightfuture.com/webdev/html5-input-number-localization

If you really need it to accept a decimal commas on all browsers, you may want to use a textInput and convert to a number in R with something like this:

  as.numeric(sub(",", ".", input$mynumber))

Keep in mind that if you use a textInput, the user could type in any string, not just a number.

-Winston

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