// Not particularly efficient/scalable since it shuffles the entire array ¯\_(ツ)_/¯
randomSample=(arr,n)=>d3.shuffle(arr).slice(0,n)
randomSample([11,12,13,14,15,16,17],2)
Purpose-built for displays of data
Observable is your go-to platform for exploring data and creating expressive data visualizations. Use reactive JavaScript notebooks for prototyping and a collaborative canvas for visual data exploration and dashboard creation.