Files
shiny/man/makeReactiveBinding.Rd
Joe Cheng dde266768c Restore HTML generating functions
These functions were temporarily ripped out of Shiny and moved
to the htmltools package. We've discovered that it's safe to
keep including them in shiny; as long as the functions in shiny
and the functions in htmltools are identical, the user won't
receive a conflict warning.
2014-05-31 08:06:03 -07:00

33 lines
812 B
R

% Generated by roxygen2 (4.0.1): do not edit by hand
\name{makeReactiveBinding}
\alias{makeReactiveBinding}
\title{Make a reactive variable}
\usage{
makeReactiveBinding(symbol, env = parent.frame())
}
\arguments{
\item{symbol}{A character string indicating the name of the variable that
should be made reactive}
\item{env}{The environment that will contain the reactive variable}
}
\value{
None.
}
\description{
Turns a normal variable into a reactive variable, that is, one that has
reactive semantics when assigned or read in the usual ways. The variable may
already exist; if so, its value will be used as the initial value of the
reactive variable (or \code{NULL} if the variable did not exist).
}
\examples{
\dontrun{
a <- 10
makeReactiveBinding("a")
b <- reactive(a * -1)
observe(print(b()))
a <- 20
}
}