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Carson Sievert || Using tagQuery() from {htmltools} to modify HTML snippets in R || RStudio

00:00 Introduction 00:45 Motivating example - enabling front-facing camera as an input for fileInput() 01:55 Breaking down the return value of fileInput() 04:16 Design philosophy of fileInput() 07:27 tagAppendAttributes() overview 11:05 tagQuery() basics 12:00 Quick overview of the htmltools package 13:18 How tagQuery() is used to append attributes 20:54 How tagQuery() is used to append children 23:45 Using tagQuery() on an actionButton()

Learn more about tagQuery here: https://rstudio.github.io/htmltools/articles/tagQuery.html

Read up on tagAppendAttributes() here: https://shiny.rstudio.com/reference/shiny/latest/tagAppendAttributes.html

And learn more about the htmltools package here: https://rstudio.github.io/htmltools/index.html

Got questions? The RStudio Community site is a great place to get assistance: https://community.rstudio.com/

Content: Developer (@winston_chang) Animation, design, and editing: Jesse Mostipak (@kierisi)

Carson Sievert

Feb 24, 2022

28 min

1.4k views

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