class: inverse, right, title-slide, middle <style> .title-slide .remark-slide-number { display: none; } </style> # R + JavaScript ## Introducing reactR ### Kent Russell <h3><a style = 'color:gray;' href='https://github.com/timelyportfolio'>@timelyportfolio</a></h3> ### 2016/04/19 <a href="https://github.com/timelyportfolio/react_bham_lunch_learn_reactR" class="github-corner" aria-label="View source on Github"><svg width="80" height="80" viewBox="0 0 250 250" style="fill:#fff; color:#151513; position: absolute; top: 0; border: 0; right: 0;" aria-hidden="true"><path d="M0,0 L115,115 L130,115 L142,142 L250,250 L250,0 Z"></path><path d="M128.3,109.0 C113.8,99.7 119.0,89.6 119.0,89.6 C122.0,82.7 120.5,78.6 120.5,78.6 C119.2,72.0 123.4,76.3 123.4,76.3 C127.3,80.9 125.5,87.3 125.5,87.3 C122.9,97.6 130.6,101.9 134.4,103.2" fill="currentColor" style="transform-origin: 130px 106px;" class="octo-arm"></path><path d="M115.0,115.0 C114.9,115.1 118.7,116.5 119.8,115.4 L133.7,101.6 C136.9,99.2 139.9,98.4 142.2,98.6 C133.8,88.0 127.5,74.4 143.8,58.0 C148.5,53.4 154.0,51.2 159.7,51.0 C160.3,49.4 163.2,43.6 171.4,40.1 C171.4,40.1 176.1,42.5 178.8,56.2 C183.1,58.6 187.2,61.8 190.9,65.4 C194.5,69.0 197.7,73.2 200.1,77.6 C213.8,80.2 216.3,84.9 216.3,84.9 C212.7,93.1 206.9,96.0 205.4,96.6 C205.1,102.4 203.0,107.8 198.3,112.5 C181.9,128.9 168.3,122.5 157.7,114.1 C157.9,116.9 156.7,120.9 152.7,124.9 L141.0,136.5 C139.8,137.7 141.6,141.9 141.8,141.8 Z" fill="currentColor" class="octo-body"></path></svg></a><style>.github-corner:hover .octo-arm{animation:octocat-wave 560ms ease-in-out}@keyframes octocat-wave{0%,100%{transform:rotate(0)}20%,60%{transform:rotate(-25deg)}40%,80%{transform:rotate(10deg)}}@media (max-width:500px){.github-corner:hover .octo-arm{animation:none}.github-corner .octo-arm{animation:octocat-wave 560ms ease-in-out}}</style> --- class: left, middle # Why R? ### Language of data science (*Python works too*) ### Open and cross-platform ### Confirmed usage at Google, Facebook, Uber, Microsoft, Twitter, Netflix, Airbnb, New York Times, Financial Times, ... ### Integrates with other programming languages ### Best, most feature-complete charting and graphics ### Friendly, nice, and welcoming community --- class: left, middle, inverse # What if you want to do Data Science in JavaScript? ### [Learn JS Data](http://learnjsdata.com/) ### [Simple Statistics](https://simplestatistics.org/) ### [Tensorflow.js](https://www.tensorflow.org/js) ### [Rjs](https://github.com/R-js) - "... re-writing the R language to the browser and node" --- class: left, middle # What if you want to do Web with R? ### [opencpu](https://www.opencpu.org/) - http API based on R ### [plumber](https://www.rplumber.io/) - web API from R code ### [rmarkdown](https://rmarkdown.rstudio.com/) - markdown + R + other languages ### [Shiny](https://shiny.rstudio.com/) - reactive, interactive web apps from R ### [htmlwidgets](http://htmlwidgets.org) - wrap HTML/JS/CSS for use in R ### [rvest](https://github.com/tidyverse/rvest) - web scraping for R ### [V8](https://cran.r-project.org/web/packages/V8/vignettes/v8_intro.html) - embedded V8 for R --- class: top, left # What Does R Look Like? .pull-left[ ## JavaScript ```js [1,2,3] ``` ```js { x: "string", y: true } ``` ```js function(x) { return x+2 } ``` ] .pull-right[ ## R ```r c(1,2,3) ``` ```r list( x = "string", y = TRUE ) ``` ```r function(x) { return(x+2) } ``` ] --- class: top, left # R + JS | htmlwidget ```r library(leaflet) leaflet() %>% addTiles() %>% setView(-86.786324, 33.5141587, zoom = 17) ```
--- class: top, left # R + JS | now with React !! <div style="text-align:right"><a href = "https://developer.microsoft.com/en-us/fabric/#/components"><code>office-ui-fabric-react<code/></a> React components</div> [`roffice`](https://github.com/react-R/roffice) R package .pull-left[ ```r officeuiwidget( React$Slider( label = "a slider", min = 1, max = 5, step = 1, defaultValue = 2, showValue = TRUE ) ) ```
] .pull-right[ ```js <Slider label="a slider" min={1} max={5} step={1} defaultValue={2} showValue={true} /> ``` ] --- class: top, left ```r officeuiwidget( React$DatePicker() ) ```
```r officeuiwidget( React$CommandBar( items = list( list( key = 'upload', name = 'Upload', iconProps = list(iconName = 'Upload') ), list( key = 'share', name = 'Share', iconProps = list(iconName = 'Share') ) ) ) ) ```
--- class: top, left ## R + React in a Shiny App ![animated screencast of Shiny app](react_shiny_example.gif) --- class: left, top background-image: url("python-logo-master-v3-TM.png") # What about ? --- class: middle, center # See [dash](https://plot.ly/products/dash/) from Plotly --- class: top, left # Thanks, Attribution [RStudio](https://rstudio.org) [React Authors](https://github.com/facebook/react/blob/master/AUTHORS) [remark.js](https://github.com/gnab/remark) [xaringan](https://github.com/yihui/xaringan) by Yihui Xie [xaringanthemer](https://github.com/gadenbuie/xaringanthemer) by Garrick Aden-Buie [@alandipert](https://github.com/alandipert) for brilliant work on `reactR`