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Life & fun · July 26, 2019

A Demo IDE for Scheme

A Demo IDE for Scheme launched on July 26, 2019 with 97 votes, #339 of 3,007 launches that month and more than 90% of that year's launches. The site was still online in September 2026, 7 years on.

In plain words

A Demo IDE for Scheme is an integrated development environment designed for writing and running Scheme code. It provides programmers and students learning functional programming with a practical tool to test and execute Scheme programs. The IDE offers a straightforward interface for code editing and evaluation, making it accessible for those exploring Scheme language concepts.

written from the facts on this page · September 2026

From the sources

Debugging Better

It's a native Mac editor for Scheme: simply launch the app, write Scheme code, and run it. Toski has a special debugging feature called preview execution . You can "preview" what the result of a section of code will be, without actually running it. ”Debugging is twice as hard as writing the code in the first place.” -Brian W. Kernighan, 1978 In 2019, debugging still feels twice as hard. Toski introduces a new debugging technique called preview execution . When reading or debugging code, you should be able to see what the code will do if you run it, without having to run it. That is, you should be able to see a preview of what part of your code might do. With Toski, previewing your code is…from kennethfriedman.org

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