count: Count the number of times a signal has been updated.
In hadley/shinySignals: Stream functions from shiny.

Count the number of times a signal has been updated.

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count(signal)

countIf(signal, predicate)

`signal`	A signal.
`predicate`	A predicate; only signals for which the predicate returns true will be counted.

A reactive integer

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rand <- reactive({fps(30); rnorm(1)})
count(rand)
countIf(rand, function(x) x > 0)

hadley/shinySignals documentation built on May 17, 2019, 12:47 p.m.

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