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Observable is a programming language created in 2017 by Mike Bostock.

#369on PLDB 7Years Old
Download source code:
git clone

Try now: Web

A partially open source derivative of Javascript modified for dataflow that powers the Observable data science web app.

Example from the web:
{ let x = 0; for (let i = 1; i <= 100; ++i) { x += i; } return x; }

Language features

Feature Supported Token Example
Line Comments //
// A comment
Semantic Indentation X

View source

- Build the next great programming language · About · Resources · Acknowledgements · Part of the World Wide Scroll