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1. stackoverflow.com › questions › 78664939r - App input keeps getting reset to the initial value ...

   stackoverflow.com › questions › 78664939

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   Jun 25, 2024 · The resason your app resets is that you update your selectInput s every time you draw the plot. Which happens every time you change one of the selectInput s. It's a vicious circle. Since you don't specify a value in your updateSelectInput s, the first element of choices is selected. Hence the reset.

2. forum.posit.co › t › observe-reactives-with-levelsObserve reactives with levels - shiny - Posit Community

   forum.posit.co › t › observe-reactives-with-levels

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   Jul 4, 2024 · The actual reactive expression inside each list is not evaluated because the observeEvent only looks after the first reactiveElement. I have made some sort of example with my issue. I have tried looking at shiny::reactiveValues (). My thought was somehow to use that instead of a list, but I am unsure about how to update it in the module_1 function.

3. nbisweden.github.io › raukr-2024 › slidesInteractive web apps with Shiny

   nbisweden.github.io › raukr-2024 › slides

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   Jun 21, 2024 · reactiveVal(): Defines single value; reactiveValues(): Defines a list of values; Regular function fn <- function(): Runs wherever it is is used Reactive function fn <- reactive(): Runs only when input changes. Reactive context. Reactive values cannot be accessed outside a reactive context

4. forum.posit.co › t › tests-fail-in-devtools-checktests fail in devtools::check when Shiny app is structured as ...

   forum.posit.co › t › tests-fail-in-devtools-check

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   Jun 26, 2024 · The tests pass when I run devtools::test() but fail when I run devtools::check() with the error message "Error ('test-examplemodule.R:2:3'): exampleModuleServer works Error in eval(code, test_env): object 'exampleModuleServer' not found" My code and an explanation of what I tried are below.

5. rdrr.io › cran › shinytest2AppDriver: Drive a Shiny application in shinytest2: Testing ...

   rdrr.io › cran › shinytest2

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   Jun 24, 2024 · Reactive values from within your Shiny application can be exported using the method: shiny::exportTestValues() . This underutilized method exposes internal values of your app without needing to create a corresponding input value or output value. For example: library(shiny) shiny_app <- shinyApp(. fluidPage(.

6. rdrr.io › github › dreamRsfilter-data: Shiny module to interactively filter a 'data ...

   rdrr.io › github › dreamRs

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   Jun 28, 2024 · shiny::reactive() function returning a named list of variable:value pairs which will be used to set the filters. drop_ids: Drop columns containing more than 90% of unique values, or than 50 distinct values. Use FALSE to disable or use list(p = 0.9, n = 50) to customize threshold values. widget_char

7. People also ask

   How do you read a value out of a reactiveval object?

   • When you read the value out of a reactiveVal object, the calling reactive expression takes a dependency, and when you change the value, it notifies any reactives that previously depended on that value. A function. Call the function with no arguments to (reactively) read the value; call the function with a single argument to set the value.

   Shiny - Create a (single) reactive value — reactiveVal

   shiny.rstudio.com/reference/shiny/latest/reactiveVal.html

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   What is a reactiveval object?

   • This is an object used for reading and writing a value, like a variable, but with special capabilities for reactive programming. When you read the value out of a reactiveVal object, the calling reactive expression takes a dependency, and when you change the value, it notifies any reactives that previously depended on that value.

   Shiny - Create a (single) reactive value — reactiveVal

   shiny.rstudio.com/reference/shiny/latest/reactiveVal.html

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   What happens when you read a value from a reactive expression?

   • When you read a value from it, the calling reactive expression takes a reactive dependency on that value, and when you write to it, it notifies any reactive functions that depend on that value. Note that values taken from the reactiveValues object are reactive, but the reactiveValues object itself is not. reactiveValues(...) ...

   reactiveValues : Create an object for storing reactive values

   rdrr.io/cran/shiny/man/reactiveValues.html

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   What is reactivevalues() function?

   • Title: reactiveValues() function. Description: With reactiveValues(), you can create your own reactive values. reactiveValues() Creates a list of objects that can be manipulated within a reactive context (within observer or observerEvent with dependency on changes in certain input or state of an object).

   Simple counter using reactiveValues() in R Shiny - An

   gist.github.com/aagarw30/69feeeb7e813788a753b71ef8c0877eb

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8. cran.r-universe.dev › shinyauthr › docPackage 'shinyauthr' reference manual

   cran.r-universe.dev › shinyauthr › doc

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   Jun 20, 2024 · Value The module will return a reactive 2 element list to your main application. First element user_auth is a boolean indicating whether there has been a successful login or not.