Deno 1.37 Enhances Functionality with Jupyter Notebook Integration and Upgraded VS Code Extension Support
Deno 1.37 introduces significant advancements aimed at simplifying software development, notably through its integration with Jupyter Notebook. Released on September 20, this version of the Deno runtime enhances the developer experience for JavaScript, TypeScript, and WebAssembly applications. One of the standout features is the inclusion of the new deno jupyter command, which allows developers to build a Deno kernel for use within Jupyter Notebook.
This integration aims to bridge the gap between scripting and data analysis, offering a more seamless experience for those who leverage Jupyter Notebook for interactive computing. Developers who already have Python and pip installed can start using Jupyter by executing the command pip install jupyterlab to set up their environment. This new feature underscores Deno’s commitment to simplifying the development process and expanding its utility beyond traditional JavaScript runtime environments.
In addition to the Jupyter integration, Deno 1.37 brings notable improvements to its Visual Studio Code (VS Code) extension. The update enhances the extension’s ability to detect deno.json configurations and introduces a new deno.disablePaths configuration option. These updates also include better support for file renaming and NPM-specifier completions. A new configuration, deno.suggest.completeFunctionCalls, has been added to further streamline the development process, making coding in Deno more efficient and intuitive.
For developers looking to upgrade, instructions are available on the Deno documentation site at docs.deno.com. Existing users can update to Deno 1.37 using the deno upgrade command in their terminal, ensuring they have the latest features and improvements at their disposal.
Beyond these major updates, Deno 1.37 includes several other enhancements. The testing suite has been revamped for better usability and faster feedback, which should improve the overall development workflow. Compatibility with Node.js has been further refined, with Deno now supporting additional modules such as npm:mssql, npm:web-push, and npm:mineflayer. Most NPM modules now work out of the box, expanding Deno’s interoperability with existing Node.js ecosystems.
Quality of life improvements in Deno 1.37 include support for a new attributes syntax and graceful shutdown capabilities using Deno.serve(). The update also brings performance enhancements and an updated Lockfile format (version 3). Deno 1.37 ships with TypeScript 5.2.2 and the Google V8 11.8 JavaScript/WebAssembly engine, ensuring developers have access to the latest language features and runtime improvements.