Douglas Ezra Morrison

preserve NAs in selectInput() (addresses Issue #2884)

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This PR attempts to address https://github.com/rstudio/shiny/issues/2884; glad to revise as needed! In particular, I'm not sure how to update `shiny.min.js`, so I have only tested my changes with `options("shiny.minified" =...

https://hadley.shinyapps.io/ms-waiter/ contains the wrong app

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Link appears in chapter 8; seems like the wrong app got deployed.

typos

FWIW, I'm confused by the following passage in 18.3.2: > We could of course add session to the arguments of the function: ``` switch_page

guessed the ending to this sentence

removed what appears to be a sentence fragment that has been superceded by the following sentence.

made tense consistent with the preceding and following sentences.

typo