removeSessionVariables {jrc}

Remove variables from a client session environment

Description

This function removes variables from the environment of a client session. It allows, for instance, to unmask a variable with the same name from the outer app environment (see setEnvironment) for the session (check the example below). This function is a wrapper around method sessionVariables of the class Session.

Usage

removeSessionVariables(varNames, sessionId = NULL)

Arguments

varNames

Names of variables to remove.

sessionId

ID of the session. If there is only one active session, this argument becomes optional.

See Also

setSessionVariables

Examples

## Not run: 
# to run this example an installed web browser is required
openPage(allowedVariables = "k", sessionVars = list(k = 10))

k <- -1
getPage()$openPage(FALSE)
id1 <- getSessionIds()[1]
id2 <- getSessionIds()[2]
removeSessionVariables("k", id1)
#this changes global 'k', since the variable is no longer masked
sendCommand("jrc.sendData('k', 1)", sessionId = id1, wait = 3)
#this doesn't affect global 'k'
sendCommand("jrc.sendData('k', 5)", sessionId = id2, wait = 3)
local_k <- getSessionVariable("k", id2)

closePage()
## End(Not run)