Description Usage Arguments Value Author(s) References See Also Examples
See generic: unsetReactive
1 2 3 | ## S4 method for signature 'character,environment'
unsetReactive(id, where = parent.frame(),
...)
|
id |
|
where |
|
... |
Further arguments to be passed to subsequent functions/methods. |
logical
. TRUE
: success; FALSE
: object
was not a reactive one or failure to unset.
Janko Thyson janko.thyson@rappster.de
http://github.com/Rappster/reactr
Generic: unsetReactive,
unsetReactiveByUid
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 | ## Not run:
##------------------------------------------------------------------------------
## Non-strict get behavior //
##------------------------------------------------------------------------------
## Set example reactive objects //
setReactive(id = "x_1", value = 10)
setReactive(id = "x_2", value = function() "object-ref: {id: x_1}")
## Unset //
## --> transforms objects into non-reactive/regular objects again
isReactive("x_1")
unsetReactive("x_1")
isReactive("x_1")
## Inspect //
x_1
identical(x_2, x_1)
x_1 <- 20
x_1
x_2
## --> no reactive relationship to 'x_1' anymore; last cached value returned
isReactive("x_2")
## Reset referenced object again //
setReactive(id = "x_1", value = 50)
x_1
identical(x_2, x_1)
## --> reactive relationship re-established again
## Clean up //
rmReactive("x_1")
rmReactive("x_2")
##------------------------------------------------------------------------------
## Strict get behavior level 1 //
##------------------------------------------------------------------------------
setReactive(id = "x_1", value = 10)
setReactive(id = "x_2", value = function() "object-ref: {id: x_1}",
strict_get = 1)
unsetReactive("x_1")
try(x_2)
## --> warning and NULL
setReactive(id = "x_1", value = 50)
x_2
## --> reactive relationship restored
## Clean up //
rmReactive("x_1")
rmReactive("x_2")
##------------------------------------------------------------------------------
## Strict get behavior level 2 //
##------------------------------------------------------------------------------
setReactive(id = "x_1", value = 10)
setReactive(id = "x_2", value = function() "object-ref: {id: x_1}",
strict_get = 2)
unsetReactive("x_1")
try(x_2)
## --> error
setReactive(id = "x_1", value = 50)
x_2
## --> reactive relationship restored
## Clean up //
rmReactive("x_1")
rmReactive("x_2")
## End(Not run)
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