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Move actionbutton out of shinyIncubator into shiny

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Winston Chang
2013-06-04 22:15:28 -05:00
parent a4a92b63ed
commit 6bea4d9c33
1 changed files with 1 additions and 10 deletions
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_includes/tutorial/isolation.md
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@@ -2,20 +2,11 @@
Sometimes it's useful for an observer/endpoint to access a reactive value or expression, but not to take a dependency on it. For example, if the observer performs a long calculation or downloads large data set, you might want it to execute only when a button is clicked.
For this, we'll use `actionButton` from the `shinyIncubator` package. If you want try this code yourself, you'll have to install the package from Github, using devtools:
{% highlight r %}
install.packages('devtools')
devtools::install_github('shiny-incubator', 'rstudio')
{% endhighlight %}
We'll define a `ui.R` that is a slight modification of the one from 01_hello -- the only difference is that it has an actionButton labeled "Go!". You can see it in action at [http://glimmer.rstudio.com/winston/actionbutton/](http://glimmer.rstudio.com/winston/actionbutton/).
For this, we'll use `actionButton`. We'll define a `ui.R` that is a slight modification of the one from 01_hello -- the only difference is that it has an actionButton labeled "Go!". You can see it in action at [http://glimmer.rstudio.com/winston/actionbutton/](http://glimmer.rstudio.com/winston/actionbutton/).
The actionButton includes some JavaScript code that sends numbers to the server. When the web browser first connects, it sends a value of 0, and on each click, it sends an incremented value: 1, 2, 3, and so on.
{% highlight r %}
library(shinyIncubator)
shinyUI(pageWithSidebar(
headerPanel("Click the button"),
sidebarPanel(